Excalibur Plumeria Fertilizer IX - 9 Month, 2 - 64 oz containers, total 128 oz (includes shipping)

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Excalibur Plumeria Fertilizer IX - 128 oz. (2 - 64 oz) 9 month fertilizer (includes shipping in the Continental United States)

NOW WITH BORON, Excalibur was developed by combining Florida Colors Nursery’s expertise growing plumeria with the latest advancements in nutrient technology, Florida Colors Nursery’s Excalibur fertilizers have proven to provide highly effective and efficient results.

Excalibur is a custom mix fertilizer using controlled release technology formulated specifically for Plumeria. Excalibur and other fertilizers manufactured by Harrells are tested at 86 degrees, not 70 degrees (one of the many reasons we choose Harrells). Excalibur uses a combination of Multi-coat and Poly-coat technology to achieve the release rate, which is moisture activated and based on osmosis.

We were able to formulate a supreme-quality fertilizer with an NPK of 11-11-13 designed specifically for plumeria. Introduce only a few years ago, Excalibur has become the standard which other fertilizers are judged for growing plumeria. Excalibur is just what you need to assure your plumeria is getting what it needs to grow and bloom at it's full potential. With Excalibur your plumerias are receiving supreme-quality fertilizers and service from a plumeria grower you know and can trust.

Why Use Excalibur?

  • Excalibur: designed specifically for Plumeria
  • Excalibur: promotes healthy even plumeria growth
  • Excalibur: high quality 11-11-13 NPK granular fertilizer with Micronutrients
  • Excalibur: available as a 6 or 9 month controlled release fertilizer
  • Excalibur: designed to release nutrients as your Plumeria needs them to thrive 
  • Excalibur: uses water activated polyon coated ingredients, releases only when activated by moisture.
  • Excalibur: formulated by Florida Colors Nursery with over 30 years of experience growing Plumeria
  • Excalibur: not only sold by Florida Colors Nursery but we use it on all of our plumeria
  • Excalibur: exclusively sold by Florida Colors Nursery or an approved agent
  • Excalibur: backed by one of the largest national fertilizer companies
  • Excalibur: approved to sell in every state the Continental US and Hawaii

Typical Usage Rates:

  • 4-4 1/2" = 3/4 tbsp.
  • 6" - 1 gal pot = 2 tbsp.
  • 3 gal pot = 3 tbsp.
  • 5 gal pot - 4 tbls. (1 oz = 2 tbsp.)
  • Grown in the ground, use approximately 1 - 2 tablespoons per inch of trunk dia. Depending on how many branch the tree has.

Excalibur is a controlled release polyon coated fertilizer designed to last approximately 6 months for Excalibur VI and 9 months for Excalibur IX (depending on which you use). It is applied dry and is best to cover with about 1" to 2" of soil for even distribution, it needs water to activate release nutrients.

How it feeds your plants:

  • Application of Water
  • Release of Nutrients
  • Decomposition of Poly coating

Advantages of controlled release fertilizers are that the nutrients are available gradually over time. This means that the gardener can fertilize less often, and the nutrients are provided slowly and steadily. This is how most plants prefer to be fed and helps them grow well. Granular fertilizers are easier to control because you can actually see how much fertilizer you're using and where it's being dispersed.

Fertilizers are a mix of nitrogen (N), phosphorus (P), and potassium (K). The ratio will be indicated by three numbers (the first is nitrogen, the middle number is phosphorous, and the third is potassium). We recommend a balanced fertilizer with micronutrients for plumeria with a NPK of 11-11-13 or similar to Excalibur. 

Micronutrients - The Hidden Story...And, Often Only Delivered by Controlled Release Fertilizers!

There are several nutrients essential to plant growth and health that are only needed in very small quantities. These are manganese, copper, iron, chlorine, and molybdenum and zinc. 

  • Chlorine is necessary for osmosis and ionic balance; it also plays a role in photosynthesis.
  • Copper is a component of some enzymes and of vitamin A. Symptoms of copper deficiency include browning of leaf tips and chlorosis.
  • Iron is essential for chlorophyll synthesis, which is why an iron deficiency results in chlorosis.
  • Manganese activates some important enzymes involved in chlorophyll formation. Manganese deficient plants will develop chlorosis between the veins of its leaves. The availability of manganese is partially dependent on soil pH.
  • Molybdenum is essential to plant health. Molybdenum is used by plants to reduce nitrates into usable forms. Some plants use it for nitrogen fixation, thus it may need to be added to some soils before seeding legumes.
  • Zinc participates in chlorophyll formation, and also activates many enzymes. Symptoms of zinc deficiency include chlorosis and stunted growth.
  • Boron plays a vital role in a diverse range of plant functions including cell wall formation and stability, maintenance of structural and functional integrity of biological membranes, movement of sugar or energy into growing parts of plants, and POLLINATION and SEED SET.


We use Excalibur every year in our Plumeria Care Regimen: https://www.floridacolorsplumeria.com/plumeria-care-regimen/

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3 Reviews

  • 5
    Best Fertilizer for Maximum Blooms

    Posted by Donna Christy on 7th Jan 2018

    I have used many different fertilizers before I found Excaliber . Since using the Excaliber fertilizer , I have healthier and more vigorous plants than ever before ; the bloom heads have increased in muber and beauty ! I heartily recommend this fertilizer to all my plumeria growing friends.

  • 5
    Tex Knew What He Was Doing ....

    Posted by Suzanne Semago on 7th May 2017

    We've had plumerias for quite a while and have fertilized them every year but this is the first year to use Florida Colors Excalibur fertilizer. We were approached by the local garden club to have our yard on their annual fund raising garden tours in April...eek! Panic! At the recommendation of a friend one of the first things I did was to order every fertilizer FCN sells and apply it the moment it arrived. Not only are the directions clear to understand but the fertilizer couldn't be easier to apply to plumerias in pots or in the ground. Results? Wow! We've never, ever had so many inflos pushing out or blooms opening this early in the year! Plumeria which have not ever bloomed before are showing us what they have, lovely green leaves are popping out on every branch almost as soon as we watered the Excalibur in. I absolutely could not be more pleased with what FCN has developed especially for our plumeria. I do fertilize monthly with Bio-Blast and Vita-zyme (I know one of them says weekly but I'm not that good) and have high hopes one plumeria that has been described as a "stingy bloomer" will show that's a wrong assessment. As long as I have plumeria I'll be fertilizing with Excalibur...you really should too.

  • 5

    Posted by Tessa Pennell on 24th Apr 2017

    I purchased my Excalibur last fall 2016. I live in Florida and our winters are pretty mild so I added the Excalibur when I got it last year 2016 in the fall. The plants had it all winter long here and I have more flowers than I did the previous year.
    I also use it on all of my seedlings the minute they get transplanted.
    I have had several cuttings from Hawaii that have been planted and growing but no flowers until this year 2017.
    I love this product because it is easy to use. The plumeria's get fertilized regularly without me even thinking about it.
    I also love that the color is green as it stands out in the dirt so you can see if you need to add any fertilizer or not.
    It is a great product and I am glad that I purchased it.

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