2019 Project – Planting and Growing Plumeria from Seeds

My favorite way to germinate and grow plumeria seeds.
After soaking I placed the Camelot seeds in FCN FlexiPlugs leaving their flags sticking out. After soaking for 4 hours, 68 out of 70 seeds passed the viability test. Usually, viable seed will soak up enough water to cause them to sink to the bottom of the container. The plumeria seed embryo is the part of a seed that contains the earliest forms of a plant’s roots, stem, and leaves. The two that didn’t sink in the water appeared to have underdeveloped embryos.

After soaking I placed the Camelot seeds in FCN FlexiPlugs leaving their flags sticking out. (Soaking Plumeria Seeds) After soaking for 4 hours, 68 out of 70 seeds passed the viability test. Usually, a viable seed will soak up enough water to cause them to sink to the bottom of the container. The plumeria seed embryo is the part of a seed that contains the earliest forms of a plant’s roots, stem, and leaves. The two that didn’t sink in the water appeared to have underdeveloped embryos.

This year my experiments are one to determine the benefits of correcting pH and two to determine if growing seedlings in nutrient saturated FlexiPlugs until time to transplant into pots is beneficial.

Similar to or maybe a version of hydroponics.

Day 1, 2/16/2019

Camelot Plumeria Seeds in FCN FlexiPlugs
Day 1, 2/16/2019
Plumeria Seeds in FCN FlexiPlugs
Day 1, 2/16/2019
Plumeria Seeds in FCN FlexiPlugs
Day 14, 3/3/2019
Hope Seedling in FCN FlexiPlugs

Hope Seedling in FCN FlexiPlugs. What I look for when evaluating my seedlings. When seedlings have a dark trunk, dark leaves with dark veins in the leaf, I believe they have a greater chance of having a colorful flower. Of course, there is no guarantee. This seedling was 19 Days old on 3/7/19 and about 3″ tall.
Camelot seedlings, March 17th, 2019. 29 days Old, time to start transplanting.

Camelot seedling, March 17th, 2019, After 29 days I’m starting to see roots emerge from the plugs.
2019 Project – Planting and Growing Plumeria from Seeds

Soaking Plumeria Seeds

This is a method I’m using to start the first batch of 70 Camelot seeds this year on Feb. 16th, 2019. From the first double pod to open this year at 9:30 AM. I filled one of Kay’s plastic containers about half full of hot tap water (not so hot that I couldn’t hold my finger in it). FYI, We are on well water. The seed will absorb hot water quicker and it adds some heat to the germination process. The seeds are less than 2 weeks old.

It all comes down to water’s viscosity. Cold water is more viscous than hot water, which means that its molecules more readily cling to one another. When water is heated, the water molecules begin to move around much more rapidly, keeping them from clinging together and making the water runnier, that is, less viscous.


Camelot plumeria seeds put on to soak in sealed container with hot water.

Plumeria seeds after 2 hours soaking in sealed container, water still warm.

The third picture is after 3 hours of soaking. Only a few left floating…I knew two very thin ones looked like they would not be viable.

The Camelot seeds are fresh, less than two weeks old. Older seeds will take longer to absorb enough water. I like to soak a minimum of 4 hours, (overnight is good) especially if they are 3 years old or older seeds. When I plant for rootstock, I do not soak them.

Next: Planting Plumeria Seeds in FCN FlexiPlugs

Soaking Plumeria Seeds

Plumeria Seed Starter Kit

As always, we are pleased to share our experiences and technology!

I’m using the Plumeria Seed Starter Kit from FCN

After several years of experimenting with various media and products for germinating and growing seedlings, We, Florida Colors Nursery, decided to make them available on our site. The Florida Colors Nursery Plumeria Seed Starter Kit consists of a flat tray without drain holes, a plug tray and 36, pH neutral 2″ x 3″ foam injected peat plugs pre-saturated with micro-nutrients (Why I use FCN FlexiPlugs). Specific micro-nutrients have been added to promote seed germination and give young seedlings a kick start. The Plumeria Seed Germination Kit is for the serious grower who wants the most out of their seeds.

For best results always start with the freshest seeds possible. Purchase from a trusted seller known to provide quality plumeria seeds.

Nutrient Mix – 1 oz of Carl Pool’s Root Activator (Why I use Carl Pool’s Root Activator) and 1 oz Vital Earth’s Vitazyme (Why I use Vitazyme) per gal of water. The products used for the nutrient mix are products we have been using and also sell on our website, but you can certainly replace them with similar products.

Phase I – Seed Germination

If you need to test viability or speed up initial germination, you may want to soak your seeds before planting. See “How to Soak Plumeria Seeds”
https://plumeriaseeds.com/soaking-plumeria-seeds/  

There are many methods for seed germination. The method below is the best for me in my climate.

  1. Remove the plastic cover. (The tray and plugs are wrapped in plastic and sealed to keep the plugs moist.)
  2. Use a knife to make a slice in each plug, make a 1/2″ wide slice and about 2″ down into the plug.
  3. Place the seed in the slice in the plug allowing the seed’s flag to stick out.
  4. Fill the flat tray with the nutrient mix (1 oz of Root Activator and 1 oz Vitazyme per gal of water) The best way to accomplish this is to lift a plug out, add nutrients and replace the plug.
  5. Seed germination will take from 7-14 days, sometimes longer.

Phase II – Seedling Growth

Phase II is the initial seedling growth

  1. Check the flat tray every few days and add water when needed to keep the tray full. The easiest way is to lift a plug out, check and add nutrients if needed, then replace the plug.
  2. After your seedling has produced three or four real leaves, start fertilizing with Bioblast 7-7-7 (Why I use Bioblast) every two weeks (Mix: 1 teaspoon per gallon, this is half strength), early in the morning or late in the afternoon. Do not spray during the heat of the day.
  3. Check the water level in the trays often and add water as needed to keep the flat tray full of water.
  4. Check and add nutrients as needed, the same mix as above or similar.
  5. Every two weeks foliar feed with Bioblast 7-7-7 fertilize (1 teaspoon per gallon, half strength), early in the morning or late in the afternoon. Do not spray during the heat of the day.
  6. When you see substantial growth and lots of roots, it is time to transplant into soil.
  7. Initial seedling growth is usually 2-3 months before it has enough root to transplant into 1 gal or larger pots.

NOTE: Your seedlings growth will vary depending on the weather and time of year. Spring is the best time for planting and growing plumeria seeds. Seeds need warmth and moisture to germinate; seedlings need warmth, moisture, and light to grow.

 Phase III – Transplanting to Soil and Fertilizing

When you have sufficient roots, it’s time to transplant the plugs into 1 gal or larger pots. I prefer to use Pro-Mix BX with Mycorrhizae (Why I use Pro-Mix BX) for the first transplanting of seedlings in soil. Usually good for eight months before time to move to larger pots.

  1. Fill a one gal pot or larger with Pro-Mix BX with Mycorrhizae.
  2. Drench the Pro-Mix with the same mix as above, (1 oz of Root Activator and 1 oz Vitazyme per gal of water)
  3. Make a hole large enough for the plug to fit in, (we use a rooting tube to make an indention into the soil).
  4. Insert the plug in the soil (Be careful not to damage the roots).
  5. Sprinkle two tablespoons of Excalibur VI (Why I use Excalibur Plumeria Fertilizer) around the plug and the top of the soil. Excalibur should last until the seedlings are approximately eight months old. I like to use the six months because the seedling should need to be transplanted every 6 months or so.
  6. Add soil to cover the fertilizer and the plug with about 1/2″ to 1″ of soil.
  7. Tamp the soil around the plug to assure good contact between the plug and the soil.
  8. Water the first time after transplanting, until the soil is soaked with the Nutrient mix (1 oz of Root Activator and 1 oz Vitazyme per gal of water).
  9. Add soil when needed.
  10. Be sure to monitor soil moisture and water well when the soil is almost dry. (A moisture meter is a good tool to use)
  11. Every two weeks Foliage feed with Bioblast 7-7-7 fertilize (1 tablespoon per gallon, full strength), early in the morning or late in the afternoon. Do not spray during the heat of the day.
  12. Treat for insects as needed.

Now that you have labored so hard to give your seeds the best possible care to help your seeds germinate and grow all you have to do is wait. I can assure you the feeling you get when you a plumeria seedling bloom that you grew from seed is worth it. Hopefully, you will find out how it feels for yourself in a few years.

Plumeria Seed Starter Kit

Growing Plumeria From Seed

Whether you plan on growing plumeria for pleasure or profit, you should know growing from seeds is a major commitment that grows bigger and bigger every year. Growing a plumeria from seed is the only way to produce a new cultivar. Typically it will take a plumeria 2-3 years to bloom and sometimes much longer. I believe only 1 out of 500 seedlings is worthy of growing to the point of being a commercially viable plumeria, but 1 out of 100 will be considered a keeper for most growers. And, it could take as long as 10 years to have enough product to bring to market. This is the main reason the newest cultivars cost more.

So, if you have the commitment and really want to make an incredible journey, I encourage you to grow plumeria from seed. It is a very rewarding journey and the feeling you get when you see YOUR seedling blooming for the fist time is a feeling you will never forget. It won’t mater if it is a world class plumeria flower or just a common white. The first is always special, but you will have that feeling of anticipation and excitement with every new seedling bloom.

Growing Plumeria from seeds has been my passion for many years. This year is no different, it’s time to try new things and have new successes and of course failures. Armed with all the data from past years, it an ongoing goal to determine what the best methods are for my growing environment, needs and budget. Some methods may be outstanding, but for me they are far too labor intensive. Some products may work great, but may be just too expensive to justify using. With all this in mind, the first thing to do is develop a plan for the next seedling project.

Plumeria Seed Selection 

IT’S EXTREMELY RARE FOR PLUMERIA SEEDS TO GROW TRUE TO IT’S PARENT(S). This is a very important fact to know. The good news, you can expect plumeria seeds to inherent some of its parent’s characteristics possibly going back 7 generations. The bad news is, most will inherent the less desirable characteristics. So the selection of which seeds you want grow is very important.

Selecting healthy seeds is imperative, if you are going to spend a lot of time and energy growing plumeria seeds, you deserve to have the best chance of success possible. 

Whether you are growing for fun or pleasure, you should select quality seeds from a trusted grower who will guarantee the pod parent. I would suggest you purchase a complete seed pod when possible or at least all the seeds in a seed pod. Be cautious of any seller who claims to know the pod and pollen parents, unless they are a very respected grower. Even though a plumeria seed typically does not grow true to its parent(s) you can improve the chances of getting an outstanding plumeria by knowing as much about a seed’s heritage as possible. Selecting seeds from a cultivar know to produce good seedlings is a good way to improve your chances of getting better seedling.

Viability Testing

A dormant plumeria seed certainly looks dead. It does not seem to move, to grow, nor do anything. In fact, even with biochemical tests for the metabolic processes we associate with life (respiration, etc.) the rate of these processes is so slow that it would be difficult to determine whether there really was anything alive in a seed.

Testing the viability prior to planting can be a resource and time saver. The viability of plumeria seeds can be checked by using one of several methods. 

Quick check: By simple feeling the seed to see if it feels firm and thicker in the center of the seed, there is a good chance it is viable.

Drop the seed in a bowl of lukewarm water and allow to set for several hours, as the seed takes on water and removes air it will sink in the bowl. If a seed sinks, there is a good chance it is viable.

Germination

If a plumeria seed is not allowed to germinate (sprout) within some certain length of time, the embryo inside will die. Each species of seed has a certain length of viability. Some plumeria seeds have been known to germinate after 12 years. It is best to plant within a few months of being dispersed. It is believed a few cultivars, such as Dwarf Singapore Pink, will lose viability as it dries out and should be planted as soon as possible.

Assuming the seed is still viable, the embryo inside the seed coat needs something to get its metabolism activated to start the embryo growing. The process of getting a plumeria seed to germinate is simple.

Plumeria seeds lack true dormancy. The seeds are ready to sprout. All they need is some moisture to get their biochemistry activated, and temperature warm enough to allow the chemistry of life to proceed.

Place the seed in soil with the fan part of the seed sticking up out of the soil and water well, keep the soil moist. The seed will germinate in a few days and you will seed the seed emerge within 5-10 days, sometimes longer.

Spread the seeds out on soil laying flat in a try and cover with 1/4″ of soil. Water well and keep the soil moist. The seed will germinate in a few days and you will seed the seed emerge within 5-10 days, sometimes longer.

Place the seed between two paper towels, soak with water, place the towels in a warm area. Leave until you see roots developing. Do not allow the towels to dry out, if the seeds start to germinate and then dries, it could stop it from germinating. As soon as roots appear, it is time to plant. You should see roots within a few days.

The seed cotyledon, which forms in the embryo of seeds before germination, stores food for the embryo. Along with the endosperm, the cotyledon nourishes the new growth of the plant. It is the part of the seed that emerges from the testa, or hard covering, during germination. It grows upward, turning into a set of seed leaves as the seed germinates, using photosynthesis to nourish the newly forming plant further. The seed leaves will fall off after true leaves form.

Initial Transplanting to soil & the First 3-5 Months of Growth

After true leaves form the growing needs change. As the seedling grows it will need more sunlight, warmth, moisture and nutrients. I believe the first three months of a seedlings life is the most important.

In 2016, I performed an experiment where I applied Excalibur granular fertilizer to a two-month-old group (Group “B”) of seedlings, I keep another group for control (Group “A”) without additional fertilizer, after 5 weeks I compared the groups. Group “B” had grown approximately 25% more in height and has substantially more roots. After 2 months, I added the same granular fertilizer to Group “A” and started treating both the same after that. The interesting fact is, after 10 months there was still an approximately 25% difference between Group “A”  and Group “B”. I will continue to track the growth of these groups over the next few year.

Care after transplanting to 1 gal or larger, approximately 3-5 Months

After approximately 3 months, it is important to start treating seedlings as young adults. For me this means, water as soon as needed, fertilize with micronutrients, organic matter, bio-stimulates, etc. that enhance the roots system and overall maturity of the plant. At the same time, I provide additional nutrients to the leave and tips to keep the plant healthy and pest free. The goal is to allow the plumeria to mature as much as possible in the shortest amount of time. It is important to understand the concept of “allow the plumeria to mature”. It is important to provide a balanced diet of nutrients, organic matter, bio-stimulates, moisture and heat without overdoing or under doing any one factor.

Right now I would say 99% plus of all plumeria seeds produced are pollination by nature. My overall goal is to grow seedling to bloom and establish a reliable seedpod parents to use with cross-pollination projects. I’m fortunate to have a company like Florida Colors Nursery with a real need to grow seedling for root stock and new plumeria for future sales. This provides a need for the 99% of our seedling that will not be outstanding enough to grow to a marketable size.  

Damping Off Fungal Disease

“Damping Off” and Plumeria Seedlings

A soil-borne fungal disease that affects seeds and new seedlings, damping off usually refers to the rotting of stem and root tissues at and below the soil surface. In most cases, infected plants will germinate and come up fine, but within a few days, they become water-soaked and mushy, fall over at the base and die.

Several fungi can cause decay of seeds and seedlings including species of rhizoctoniafusarium, and phytophthora. However, species of the soil fungus pythium are most often the culprit. Damping off typically occurs when an old seed is planted in cold, wet soil and is further increased by poor soil drainage. High humidity levels, rich potting soils and planting too deeply will also encourage its growth.

Fungal spores live in the soil and are primarily a problem with non-sterilized soil. They can be transported on garden tools and in garden soils taken into the house or greenhouse.

Note: Older plants are rarely killed by damping off primarily because the production of secondary stem tissue forms a protective barrier and limits fungal penetration.

Treatment

There is no cure for plants that already have damping off. However, you can easily prevent the problem by providing good air circulation. A small fan or simply cracking the lid of the germination tray will suffice. The biological fungicide Mycostop may also be used as a seed treatment to prevent seed or soil-borne diseases. Other steps for preventing damping off include the following:

  1. When starting seeds indoors, use good organic potting soil or sterilize your own potting soil in an oven.
  2. Make sure your seed starter mix is light and fast-draining.
  3. Plant seedlings so that the soil surface is near the top of the container to ensure proper air circulation.
  4. Sow seeds thinly to prevent overcrowding which can lead to humid, moist conditions.
  5. Seedling trays that provide water from below are preferable to overhead watering.
  6. Never water past noon so that the soil surface and the plants are dry by evening.
  7. Avoid overwatering tender seedlings.
  8. Organocide® Plant Doctor is an earth-friendly systemic fungicide that works its way through the entire plant to combat a large number of disease problems. Apply as a soil drench or foliar spray (3-4 tsp/ gallon of water) to prevent an attack many fungal problems, including pythiumfusarium and root rot.

I’m located in Zone 10b and have been germination seeds and growing seedlings outside in FlexiPlugs in full Sun.  I have had almost no problems with damping off of my seedlings. The full sun and breezes keep the tops of the FlexiPlugs on the dry side, minimizing damping off problems.

When do you start fertilizing plumeria seedlings

Plumeria Seeds

Plumeria seed embryos typically contain two cotyledons and are grouped as dicots or dicotyledonous plants. It’s usually easy to tell which leaves are the cotyledons. As they are the first leaves the seedling produces, they will be the lowest ones on the stem, the ones to which an empty seed case often clings. They also won’t look like any of the other leaves on the seedling.

The cotyledons or seed leaves provide the seedling with nutrients for the first few weeks of its life, but when the seed leaves dry up and fall off, the seedling needs nutrients. Some people like to pinch off the cotyledons after the true leaves emerge. Unless those leaves are in the way, it is best to allow the seedling to decide when it’s done with them, or you may accidentally break its stem instead. Plumeria cotyledons are photosynthetic producers, as photosynthetic producers, cotyledons essentially can synthesize the organic nutrients it requires for growth through photosynthesis.

Fertilizers are frequently referred to as plant food, which is really not correct. Actually, it is the carbon dioxide in the air and the water in the soil, which in the presence of sunlight are converted into sugars and carbohydrates by a process called ‘Photosynthesis’, that do the actual feeding of the plant. Fertilizer is much more analogous to vitamins. The Nitrogen, Phosphorus and Potassium, and other trace elements contained in the fertilizers are necessary for cell division and enzyme processes that allow photosynthesis and growth to proceed. Photosynthesis is the process in which organisms use the energy from sunlight to produce glucose, a type of sugar, in addition to releasing oxygen. This glucose is the plant’s food.

Many methods and products are used by different growers to fertilize plumeria and plumeria seedlings. I’ve been experimenting with different plumeria seed growing methods and products over the last 20 plus year. The methods and products below are what I’ve determined to work best for me considering my growing conditions in South Florida (Zone 10b), so far.

The following is my current method for fertilizing plumeria seedlings for the first four months.

Over the last 5 years or so, I’ve been germinating and growing my seedlings outside in the full sun. (your weather conditions should be considered, not too hot, not too cold) Conducting experiments regarding when and how much to fertilize seedlings, some are complete some are still ongoing.

For the best results. so far, I use foliage feed with a liquid fertilizer at 1/2 strength for the first month or so. As soon as the seedlings have grown 3 or 4 real leaves I start spraying at full strength.

Fertilizing Plumeria Seedlings

  1. Fertilize with Bioblast 777 or similar as a foliage spray. If you use other balanced fertilizers, you should experiment, starting with 1/2 strength and increasing over time. When using a balanced fertilizer, I get better root growth and thicker trunks.
  2. When using a fertilizer high in Nitrogen as a foliage spray, the seedlings got very lanky very quickly. Lanky stalks and light green leaves can be a result of growing in shade or in a location with too little sun.
  3. When I using high phosphorus fertilizers as a foliage feed, I noticed the seedlings seem to shut down and didn’t put on as many new leaves. I suspect the seedling was having a hard time absorbing other nutrients.
  4. Micronutrients are important to healthy seedlings, so fertilizers I experiment with all contain micronutrients. 

I’ve also fertilizes from the bottom up method by setting the pot or plug tray in a container filled with nutrients. Similar to hydroponic methods. 

I don’t use granular fertilizers until I transfer to soil. I grow my seedling for the first stage in foam-injected peat plugs and then transfer the plug and all into a good soil mix.

I will transplant in pots when plenty of roots are protruding out of the plugs. This usually takes 2-3 months, depending on the time of year and weather conditions. The 2″ x 3″ plugs allow me to transfer directly into a 1 gal or larger pot mixed with ProMix without damaging the roots.

When I transplant into pots, I add granular fertilizer. I use Excalibur VI and apply twice a year. The season is almost all year long in South Florida Zone 10B.

Why Use Flexi Plugs?  –  Why Use ProMix?  –  Why Use Bioblast?  –  Why Use Excalibur Plumeria Fertilizer?   

2-20-2018 Updates – Planting Plumeria Seeds

Pre-soaking Plumeria Seeds
Pre-soaking Plumeria Seeds for 2 hours

I started plugs and seeds soaking on 2-16-2018 and so far I’ve planted a total of 216 seeds consisting of  Jackie, Metallica, Jack’s Purple, Bonnie Fox, Salmon Jack, and others. All seeds planted so far are grown hoping for new cultivars.

 

Materials Needed:
Plumeria Seeds, something to soak the seeds in, 2” x 3” Gro-Tech FlexiPlugs and trays, Vitazyme, Carl Pool’s Root ActivatorPro-Mix BX MycorrhizaeMetal Labels or plastic plant markers and permanent felt tip marker.

Each year I try to verify the products and methods by experimenting with variations on last years proven methods. This year I’m comparing the use of FlexiPlugs and Pro-Mix as starter methods. I also use a control tray from what I determined to be the best method from last year.

  • I put 72 seeds in plug trays filled with Pro-Mix and the rest in trays filled with FlexiPlugs.
    • The reason I’m trying the Pro-Mix is to see if the Mycorrhizae makes a difference on newly planted seeds and young seedling.

      Pre-soaked Flexi Plugs without seeds
      Pre-soaked Flexi Plugs without seeds
  • I pre-soaked older 2016 seeds for two hours – four hours. The seeds that didn’t plump up and felt paper think, I discarded.
    • The reason is to test the viability of the seeds and enhance germination time.
  • I pre-soaked the plugs for about 1 hour or longer until the plugs are completely saturated. I use a mix of 1 oz Vitazyme, 2 oz Root Activator per gallon of water.
    • The reason I use Vitazyme is that it is a biostimulant that fosters plant growth and development throughout the seedlings life cycle from seed germination to plant maturity in a number of ways.
    • The reason I use Root Activator is that it is a 100% natural product which safely promotes regeneration of roots through increased elongation rates. Root Activator stimulates fast root growth, reduces transplant shock, and hastens plant establishment. Also, the root activators are designed to attach to the soil and not wash out as easily as root stimulators.

      Seeds in Pro-Mix
      Seeds in Pro-Mix
  • The remaining seeds were placed directly in the plugs.
    • The reason I place them in the plugs without soaking is they all appear to be viable and by pre-soaking the plugs I have provided plenty of moisture to germinate the seeds.
  •  After planting the seeds, each tray was soaked overnight in a mix of 1 oz Vitazyme, 2 oz Root Activator and 10 drops of Merlin’s Magic Potion per gallon of water. Allowing the plugs and seeds to be saturated with the mix.
  • Then I placed the trays in a location that gets about 7 hours of full sun. Day time times here are now in the mid to upper 80s and nighttime temps are in the low 70s.
    • The reason I place in full sun right away is mainly for the heat. All a seed needs to germinate is moisture and warmth. The full sun and air flow lessen the chance of damping off. Damping off typically occurs when a seed is planted in cool, wet soil and is further increased by poor soil drainage and poor air flow.
  • Seeds in Plugs
    Seeds in Plugs

    I water three to four time a day, keeping the seedling mix and plugs very moist. I have to be careful and watch the Pro-Mix, I expect it to hold more moisture than the plugs.

Note: Cotyledon or the seed leaf is involved in the storage of food reserves. In plumeria, the seed leaf exists in pairs and show above the ground and perform photosynthesis, a function similar to a true leaf. A new seedling can and will take up nutrients even while seeds leaves are still present. I soak the soil and plugs to be sure nutrients are available as soon as needed.

2-20-2018 Updates – Planting Plumeria Seeds

Plumeria Seed Selection

Plumeria seeds are fun to grow and can provide you with many years of pleasure. Before you begin you should consider seed choices and the limitations of your growing environment and conditions. Something to remember, Plumeria Rubra seeds do not grow true to their parents and they will take up lots of space and attention until they bloom. The average time to bloom is from two the three years, some shorter and some can take much longer.

Plumeria seeds in open seed pod.

Choosing the Right Plumeria Seeds

Before exploring how to best grow your plumeria seeds and seedlings, start with the right seed. If you intend to grow for grafting rootstock or you want to grow a new cultivar, you should use the best quality plumeria seeds possible.

 

Planting seeds to grow a new cultivar

Growing seedlings in the hope of getting new spectacular seedlings the most exciting journeys you can have with plumeria. Caring and babying of your seedlings for year after year waiting until it is old enough to bloom is a true labor of love. The anticipation when you see the first inflorescence starting to form is off the charts! If the flower turns out to be just like so many others, it is such a letdown, but you are ready to move on and plant more. But, in that rare case, your plumeria flower turns out to be a world-class spectacular flower, then it’s all worth it and you are ready to plant more. Did I mention that growing plumeria seedling IS very addictive?

Over the past 20 years, I have grown seedlings hoping to get that spectacular plumeria with some success. After joining Florida Colors in 2012 I have been fortunate to be able to dramatically increase my love for growing seedlings by growing several thousand each year for future plumeria.

What I’ve learned about seed selection while growing seedling for new cultivars:

  • Choose potential seed parents that have the characteristics you are hoping for in your seedling. 
  • Obtain seeds from trusted growers.
  • Get to know as much as possible about the pod and pollen parents as possible.
  • Find out as much as possible about what plumeria was growing next to the pod parent.
  • Do your best to research and find out if the parents have produced any good seedlings.
  • Always find out how old the seeds are. The older the seed the less of a germination rate. The germination rate depending on how old they are, how they were stored, the health of the pod tree, when and how they were harvested, and of course the cultivar.
  • Select seeds that look healthy and are not paper thin.
  • I have noticed over the last 4 years that the dark seeds seem to produce the darker seedlings.
  • Note: Seedlings with dark leaves and/or darker trunks have a better chance of producing flowers with color.
  • Note: Even the darkest seedling may produce a white flower.

Planting seeds for grafting rootstock

Growing seedlings grafting: Grafting a known plumeria cultivar onto a seedling with a superior root system is about the only way you can improve an existing plumeria cultivar. The rootstock will not cause any effects on the characteristics of the plumeria. All the characteristics above the ground, flowers, fragrance, growth habit and other characteristics will remain the same. Grafting a plumeria known to typically have weak root systems on a strong seedling root system will allow the plumeria to benefit greatly. The stronger the root system allows more nutrients to be absorbed, giving it a better chance to fight off disease and a better chance of survival. Typically seeds grown for rootstock will be allowed to grow for 1 to 3 years before being used for grafting.

Over the past 40 years, Florida Colors Nursery has grown over a hundred thousand seedlings for grafting purposes.

What we have found about selecting seeds for rootstock:

  • Seeds from pod parents with strong vigorous root systems, typically produce seedlings with a good root system.
  • Seeds from pod parents with light-colored flowers, typically produce good rootstock.
  • Seedling with light-colored stalks, leaves, typically have good root systems and are good for rootstock.
  • Dark-colored seeds will produce darker colored stalk and leaves and are typically not good for rootstock.
  • Seedlings with dark stalks and/or leaves, typically have the greatest graft failure rate.
  • Seedlings that are small and slow-growing typically are not good for grafting.
  • Of course, multi-branched and seedlings that branch a lot are typically not good for grafting.
  • And young green seedlings are typically not good for grafting.

Notice I use typically on every line because there are always exceptions to the rule when it comes to Plumeria.

2-2-2018 – Planting Seeds Project Update

2-2-2018 Update, Starting with the Basic Project Details.

Plumeria Seed Pod ready for plantingPlanting seed weather in Homestead looks good enough to start my seed planting and seedling projects. The forecast says the lows are going to be around 60 and the highs around 80 for the next two weeks. This is the earliest I’ve planted plumeria seeds outdoors. They will be in full sun open to the weather. It will be interesting to see how they do. I expect them to take longer than my normal to germinate. I will be planting some more around March 1, to see if there are differences. 

Here is the updated list of seeds I’m planning on planting. The ones in bold, I waiting on fresh pods to open. I always try to plant all the seeds in a pod, if possible.

Gina, Hope, Jackie, Metallica, Super Round (J115), Jack’s Purple, Dwarf Singapore Pink, Mardi Gras, Aztec Gold, Waimea, Bonnie Fox, Raspberry Sundae, Salmon Jack….so far!

Materials Needed:
Plumeria Seeds, something to soak the seeds in, 2” x 3” Gro-Tech FlexiPlugs and trays, Vitazyme, Carl Pool’s Root Activator, Bioblast 7-7-7, Pro-Mix BX Mycorrhizae, Excalibur VI 11-11-13, Metal Labels or plastic plant markers and permanent felt tip marker.

OK, the bench cleared off, containers and trays cleaned, plugs on to soak and organized the materials and products I use to germinate the seedlings. The plant is to start soaking seeds on Saturday.

I’ve decided to try several methods to see if they make any difference and to give you an idea which will work for you.

Basic Planned Regimen for 2018 Seed Projects –  substituting Pro-Mix BX Mycorrhizae mix for FlexiPlugs

The trays I use have 36 compartments, so most of the trays will have 36 seeds in each with 2″ x 3″ compartments. I will be comparing germination and growth differences between the FlexiPlugs and using ProMix soil.

Phase I – Soaking the Seeds before Planting

Plumeria seeds need moisture and warmth to germinate. They do not require light to germinate.

  1. First Dip seeds in a mix of Vitazyme and warm (not hot) water and allow to dry before proceeding.
  2. Soak seeds in warm water until plump, about 2-4 hours, overnight is ok. A good rule of thumb: Seeds that sink after absorbing water are usually viable. Seeds that float are normally not viable. Soaking seeds gives them a head start and a good way to checks viability.
  3. I sometimes use the paper towel method for germination.
    1. Place the seeds between two paper towels, wet the towels, put in a warm place, keep the towels moist and do not let them dry out. When you see roots it is time to plant the seed. 
      Caution: It’s important you do not continue to soak after roots start showing. They should be put in soil or plugs at that point. Waiting will only increase the chances of damaging the roots. Do not allow the seeds to dry out. 

Phase II – Soaking and Preparing the Plugs and ProMix.

  • Soaking Plugs: Materials: 2″ x 3″ FlexiPlugs, 36 holes Plug Tray for 2″ x 3″ Plugs, Two flat trays to hold the FlexiPlug trays. (one with drainage and one without), Vitazyme and Root Activator.
    • Soak plugs in Vitazyme (1 oz. per Gal) and Root Activator (2 oz. per gal) Soak for 1 to 2 hours.
    • Place the plugs in the trays, then plant the seeds in the FlexiPlugs with the flags and deep enough to cover the body of the seed with the flag sticking up and above the soil and water well.
    • Place ProMix soil in the trays and gently tamp until firm, plant the seeds in the ProMix with the flags and deep enough to cover the body of the seed with the flag sticking up and above the soil.
    • Water well with leftover Vitazyme and Root Activator mix. 
  • Drenching the Soil: Materials: ProMix, Same 36 holes Plug Tray used for 2″ x 3″ Plugs, Vitazyme and Root Activator.
    Because the 2″ x 3″ plugs aren’t readily available, I’ve decided to test using the ProMix in the Plug Tray instead of the plugs.
     

    • Fill the plug tray with ProMix soil and gently tamp until firm
    • Fill a Plug Tray flat without out holes about 2/3 full with Vitazyme (1 oz. per Gal) and Root Activator (2 oz. per gal) 
    • Place the Plug Tray filled with ProMix into the tray without drain holes. Allow to Soak for 1 hour or so.
    • Lift the Plug tray and allow to drain some, then place the tray with the plugs in a tray flat that has holds.
    • Plant the seeds in the ProMix soil deep enough to cover the body of the seed with the flag sticking out above the soil.
    • Water well with leftover Vitazyme and Root Activator mix. 
  • Using 10″ x 16″ x 3″ Flat Trays: Materials: Seeds, Seedling soil mix, Plug Tray, Vitazyme and Root Activator.
    • Fill a flat tray with good drain holes or slots about 2/3 full of good seedling soil.
    • Water well with Vitazyme (1 oz. per Gal) and Root Activator (2 oz. per gal) 

Phase III – Planting the Seeds

  • Labeling Trays: Before you start planting your seeds be sure to prepare labels and be sure to label every group of seeds with a minimum of the date and cultivar. Create a label for each individual seedling you are planting. 
  • Growing plumeria from seeds for new cultivars and/or rootstock.
    • Growing Seeds For New Cultivars: Materials: Seeds, 2″ x 3″ FlexiPlugs, Plug Tray, Vitazyme and Root Activator.
    • Plant the seeds in ProMix soil deep enough to cover the body of the seed with the flag sticking out above the soil.
    • Water well with leftover Vitazyme and Root Activator mix. 
  • Growing Seeds for Rootstock: Materials: Seeds, Seedling soil mix, Plug Tray, Vitazyme and Root Activator. 
    • Using the flat tray from above, place the seeds horizontal (flat) on the soil and cover with an additional 1/2″ or so of soil.
    • Water well with a Vitazyme and Root Activator mix.

Place in a sunny location, If your nighttime average 60 degrees or above at night you are safe to put the seeds outside. Seeds will germinate and grow best in Springtime and early Summer. Warmer weather helps germination, but the soil over 95 degrees could slow down germination. `The hotter the weather to more often they will need watering.  I think full sun is the reason I’ve had almost no problems with damping off or seedling rot. Caution: In hot regions, you may need some shade

Watering your seeds

  • Keep plugs very moist. 2-3 times a day. The FlexiPlugs are foam injected peat plugs, that have proven to provide great air circulation even when wet and the plumeria seeds grow great. Although decomposition takes much longer than normal plugs, I feel it is worth the trade-off. 
  • For the ProMix in plug trays and the flats, water twice a day to keep the soil moist. Do not allow the soil to dry out.

Seed Germination – your seeds will germinate in 5-15 days, depending on the cultivar, the method used and the growing conditions.

Phase IV – Young Seedlings

After Germination, the seeds will put out roots, the seed leaves (Cotyledon) will break the surface and the seed coat will fall off and true leaves with start growing.

The seed leaves (Cotyledon) contain nutrients to help keep seedling alive until the roots can grow enough to start providing nutrients and until the real leaves have grown to perform photosynthesis to process the nutrients. 

After 3 or 4 real leaves have grown, foliar feed with Bioblast (1 tablespoon per gal). Remember when the seed leaves go away the seedling will need a source of nutrients. Caution: Apply only Early or Late in the day, not in strong sunlight, it may burn the leaves.

Phase V – Transplanting

Materials: ProMix or Seedling soil mix, 2 gal pots, 7 1/2 gal squat pots. Vitazyme and Root Activator, Excalibur and a Moisture Meter

Create a label for each seedling and be careful to label correctly with a minimum or the date planted and cultivar. We put the letter “S” on the tag to clearly indicate it is a seedling.

When you see several roots coming out the bottom and/or sides of the plug or tray it’s time to transplant. 

When transplanting I fertilize with Excalibur IX 11-11-13 (3 tablespoons for 2  pot and 5 tablespoons for the 7 1/2 gal pots) Mix in top 1” of soil to cover fertilizer granules. I suggest 9 months because you can apply again in 9 months providing nutrients all year long. Caution: If you can’t keep the seedling growing all year long, or depending on your growing season, it may be better to use Excalibur IV and apply twice a year.

Be sure the Plugs are completely covered by soil, this will help them to decompose and prevent premature drying out.

This year, I plan on transplanting the 2″ x 3″ plugs to 2 gals and 7 1/2 gal squat pots. I’m expecting the 7 1/2 gal pots may help the growth rate.

Soil mixtures:

  • I’m using Pro-Mix BX Mycorrhizae for the soil mix for growing seedlings for new cultivars.
  • A good seedling mix is good for growing rootstock.

Water well after transplanting with a mix of Vitazyme and Root Activator.

Phase VI – Extended Fertilizing and Care

Materials: Excalibur VI or IX, BioBlast and a Moisture Meter

Foliar feed every two weeks with a mix of BioBlast (1 tablespoon to 1 gal of water) and Vitazyme (2 tablespoons to 1 gal of water), early or late in the evening.

If possible keep seedlings growing for the first year by keeping in a warm, sunny location. Additional Lighting may be needed.

Water as needed, allow the pot to almost dry out and water well making sure all the soil is evenly watered. Do not allow to bet completely dry. A moisture meter is always a good tool to have.

1-27-2018 Updates – Seed & Seedling Projects

January 27th, 2018

Seed selection and planting, it’s time to start working on the details. My planned start date, Feb 1st is just around the corner.

Here is the list of seeds, Gina, Hope, Heirloom, Jackie, Metallica, Super Round (J115), Jack’s Purple, Dwarf Singapore Pink, Mardi Gras, Aztec Gold, Waimea, Bonnie Fox, Raspberry Sundae….so far!

Products Needed:
Plumeria Seeds, something to soak the seeds in, 2” x 3” Gro-Tech FlexiPlugs and trays, Vitazyme, Carl Pool’s Root Activator, Bioblast 7-7-7, Pro-Mix BX Mycorrhizae, Excalibur VI 11-11-13, Metal Labels or plastic plant markers and permanent felt tip marker. Hydrogen Peroxide and Merlin’s Potion for new experiments. 

2018 Seed & Seedling Projects

Basic Planned Regimen for 2018 Seed Projects

  1. Dip seeds in a mix of Vitazyme and warm (not hot) water. Caution: Allow to dry before proceeding.
  2. Soak seeds in warm water until plump. A good rule of thumb: Seeds that sink after absorbing water are usually viable. Seeds that float are normally not viable. Gives them a head start and a good way to checks viability. Caution: It’s important you do not continue to soak after you see the roots starting. They should be put in soil or plugs at that point. Waiting will only increase the chances of damaging the roots.
  3. Soak plugs in Vitazyme (1 oz. per Gal) and Root Activator (2 oz. per gal) Soak for 1 to 2 hours. (New Experiment: soak in 1 oz of hydrogen peroxide per 1 gal.) 
  4. Place seeds in plugs with the flags and deep enough to cover the body of the seed with the flag sticking up and above the soil and water well. Plumeria seeds will also germinate by placing them on the side and covering with 1/2″ of so of soil.
  5. Place in sunny location, I think full sun is the reason I’ve had almost no problems with damping off or seedling rot. Caution: In hot regions you may need some shade
  6. Water often to keep plugs very moist. 2-3 times a day. The FlexiPlugs are foam injected peat plugs, that have proven to provide great air circulation even when wet and the plumeria seeds grow great. Although decomposition takes much longer than normal plugs, I feel it is worth the trade off. Caution: In areas where you sun will burn leaves, you may have to only water well in morning and evening.
  7. Start Foliar feeding with Bioblast (1 tablespoon per gal) as soon as they all have an average of 3-4 leaves. Remember when the seed leaves go away the seedling will need nutrients from the soil or fertilizer. Caution: Apply only Early or Late in the day, not in strong sunlight, it may burn the leaves.
  8. When you see several roots coming out the bottom and or sides of the plug transplant to 1 gal pot. Caution: Be sure the Plugs are complete covered by soil, this will help the decomposing and prevent premature drying out. (New Experiment: I plan on transplanting the 2″x3″ plugs to a 7.5 gal squat pots)
  9. I suggest using Pro-Mix BX Mycorrhizae for your soil mix.
  10. Fertilize with Excalibur IX 11-11-13 (1 tablespoon per gal pot) Mix in top 1” of soil to cover fertilizer granules and water well. I suggest 9 month because you can apply again in 9 months providing nutrients all year long. Caution: If you can’t keep the seedling growing all year long, It may be better to use Excalibur IX at the beginning of the growing season.
  11. If possible keep seedlings growing for the first year by keeping in a warm, sunny location. Additional Lighting may be needed.
  12. Water as needed, allow pot to almost dry out and water well making sure all the soil is evenly watered. A moisture meter is always a good tool to have.

2018 Planned Experiment 1 – (Hydrogen Peroxide)

  1. Dip seeds in a mix of Vitazyme, Hydrogen Peroxide and warm (not hot) water. Caution: Allow to dry before proceeding. Optional will dip some and not dip some.
  2. Soak seeds in warm water and Hydrogen Peroxide until plump. (1 oz of hydrogen peroxide to 1 gal, final mix to be determined) A good rule of thumb: Seeds that sink after absorbing water are usually viable. Seeds that float are normally not viable. Gives them a head start and a good way to checks viability.
  3. Soak plugs in Vitazyme (1 oz. per Gal), Root Activator (2 oz. per gal) and Hydrogen Peroxide (1 oz to 1 gal) Soak for 1 to 2 hours. 
  4. Place seeds in plugs with the flags and deep enough to cover the body of the seed with the flag sticking up and above the soil and water well.
  5. Place in sunny location, I think full sun is the reason I’ve had almost no problems with damping off or seedling rot. 
  6. Water often to keep plugs very moist. 2-3 times a day work for me.
  7. Start foliar feeding with Bioblast (1 tablespoon per gal) as soon as they all have an average of 3-4 leaves. Remember when the seed leaves go away the seedling will need nutrients from the soil or fertilizer. 
  8. When you see several roots coming out the bottom and or sides of the plug transplanting the 2″x3″ plugs directly into 7.5 gal squat pots and 3 gal pot.
  9. Soil is Pro-Mix BX Mycorrhizae or a mix with Florida Colors soil and Pro-Mix Mycorrhizae. Details of the mix coming at time of transplanting.
  10. When transplanting, fertilize with Excalibur VI 11-11-13 (1 teaspoon per gal pot) Mix in top few inches of soil, it is best to completely cover fertilizer granules and water well. I use 6 month I keep seedling growing year around and I apply again in 6 months providing nutrients all year long.
  11. If possible keep seedlings growing for the first year by keeping in a warm and in a sunny location. Additional Lighting may be needed.
  12. Water as needed, allow pot to almost dry out and water well making sure all the soil is evenly watered. A moisture meter is always a good tool to have.

2018 Planned Experiment 2 – (Merlin’s Magic Potion – MMP)

  1. Dip seeds in mix of Merlin’s Magic Potion and warm water and allow to dry before proceeding.
  2. Soak seeds in warm water and Hydrogen Peroxide until plump. (1 oz of hydrogen peroxide to 1 gal)
  3. Soak plugs in Merlin’s Magic Potion (2 oz per gal) Soak for 1 to 2 hours. 
  4. Place seeds in plugs with the flags and deep enough to cover the body of the seed with the flag sticking up and above the soil and water well.
  5. Place in sunny location, I think full sun is the reason I’ve had almost no problems with damping off or seedling rot. 
  6. Water often to keep plugs very moist. 2-3 times a day has worked for me.
  7. Start foliar feeding with Bioblast (1 tablespoon per gal) as soon as they all have an average of 3-4 leaves. Remember when the seed leaves go away the seedling will need nutrients from the soil or fertilizer. Foliar feed every two weeks (1 oz to 1 gal of water) 
  8. After two weeks or so, but before transplanting into pots, soak plugs with seeds in a mix of Merlin’s Magic Potion and water. (1 oz to 1 gal of water)
  9. When you see several roots coming out the bottom and or sides of the plug transplanting some of the 2″x3″ plugs directly into 7.5 gal squat pots and some in 2-3 gal pot.
  10. Before transplanting into pots, soak plugs with seeds in a mix of Merlin’s Magic Potion and water. (1 oz to 1 gal of water)
  11. Soil is Pro-Mix BX Mycorrhizae or a mix with Florida Colors soil and Pro-Mix Mycorrhizae. Details of the mix coming at time of transplanting.
  12. When transplanting, fertilize with Excalibur VI 11-11-13 (1 teaspoon per gal pot) Mix in top few inches of soil, it is best to completely cover fertilizer granules and water well. I use 6 month I keep seedling growing year around and I apply again in 6 months providing nutrients all year long.
  13. If possible keep seedlings growing for the first year by keeping in a warm and in a sunny location. Additional Lighting may be needed.
  14. Water as needed, allow pot to almost dry out and water well making sure all the soil is evenly watered. A moisture meter is always a good tool to have.
  15. Drench with Merlin’s Magic Potion (2 oz to 1 gal of water)
  16. Continue foliar spraying with Bioblast every two weeks (1 oz to 1 gal of water) 

Depending on the weather, I planning on starting this project on Feb 1, 2018. Come back then.

1-27-2018 Updates – Seed & Seedling Projects