Why Create Excalibur Plumeria Fertilizer

Follow this link for all sizes offered: /excalibur/

Excalibur VI (6 month controlled release) /excalibur-6-month-plumeria-fertilizer/

Excalibur IX (9 month controlled release) /excalibur-9-plumeria-fertilizer/

Excalibur BOOST (2-3 month controlled release)  /excalibur-boost-plumeria-fertilizer-10-12-14-4-lbs/

Excalibur Fertilizers: The Ultimate Nutrient Solution for Your Plumeria

For years, plumeria enthusiasts and gardeners have struggled with the lack of a dedicated fertilizer specifically formulated to meet the unique nutrient needs of these tropical beauties. Florida Colors Nursery, through rigorous experimentation and research, has filled this gap in the market by developing a proprietary range of plumeria-specific fertilizers: Excalibur IX, Excalibur VI, and the latest addition, Excalibur BOOST.

Having understood through years of experience that plumeria thrives best when fed a balanced diet of nutrients, the team at Florida Colors Nursery committed to creating the perfect fertilizer. The objective was to produce a blend that not only offered a balanced nutrition profile but also had a dependable slow-release rate, ideal for the entire plumeria growing season. In partnership with one of the largest fertilizer companies in the US, the Nursery realized this goal, formulating the Excalibur line of fertilizers that cater precisely to the requirements of plumeria plants.

The Excalibur IX and Excalibur VI fertilizers are slow-release 11-11-13 and 11-11-14 blends respectively, enriched with essential micronutrients. The release rate is skillfully adjusted to match the nutrient intake of plumeria plants throughout their growing season. The formula is activated by moisture and heat via the osmosis process, releasing nutrients more intensively when watered, while minimizing the release rate during dry months and periods of dormancy. This smart nutrient delivery mechanism is particularly useful for plumerias growing in warm areas, often exposed to additional watering.

The latest offering, Excalibur BOOST, is a 10-12-14 blend designed to release over a shorter period of 2-3 months. Water-soluble, it provides quick nutrients, ideal for giving a boost to seedlings, transplants, newly rooted, and grafted plumeria.

Each Excalibur fertilizer variant has been crafted to provide your plumeria with the nutrients it needs to thrive. The nutrient coatings utilize osmosis, releasing the nutrients in sync with plumeria's needs. Depending on your geographical location and the associated growing season, you can choose either Excalibur VI, formulated to last for 6 months, or Excalibur IX, with a longer duration of 9 months. For instance, plumeria growers in Texas and Florida, blessed with longer growing seasons, could benefit from the 9-month variant.

Packaged in eco-friendly 4 lb., 8 lb., and 12 lb boxes, Excalibur fertilizers are available for purchase online in convenient 4 lb bags. Excalibur has received approval for sale in the Continental US, opening its doors to a nationwide market of plumeria enthusiasts.

In conclusion, the Excalibur line of fertilizers represents a significant breakthrough for plumeria care. With a unique, controlled-release mechanism and a nutrient profile tailored specifically to plumeria, healthier plants, better growth habits, and more blooms are just a purchase away. Don't miss this opportunity to give your plumeria the nutrient boost it deserves. Embark on your Excalibur journey today.

Typical Usage Rates:

  • 4-4 1/2" pot = 3/4 tablespoon.
  • 6" - 1 gal pot = 2 tablespoons.
  • 3 gal pot = 3 tablespoons.
  • 5 gal pot - 4 tablespoons.
  • In the ground 1 to 2 tablespoon per 1” trunk dia.


Excalibur is controlled to release moisture and heat-activated granular fertilizer using the osmosis process. It is applied dry and must be watered in. It helps improve efficiency by covering the granules with 1"-2" of soil. Granular fertilizers are easier to control because you can actually see how much fertilizer you're using and where it's being dispersed. The 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.


Excalibur BOOST is a controlled release water-soluble fertilizer designed to release over 2-3 months. The advantage of water-soluble fertilizer is it releases quickly and you will start to see results within a few days.

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 using a balanced fertilizer with micronutrients for plumeria.

Micronutrients - The Hidden Story...And, Often Only Delivered by Slow 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 their 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.

Also see Bioblast, Vitazyme, Root Activator for a complete feeding program.


Shop for Excalibur Plumeria Fertilzier

Excalibur VI (6 month controlled release) /excalibur-6-month-plumeria-fertilizer/

Excalibur IX (9 month controlled release) /excalibur-9-plumeria-fertilizer/

Excalibur BOOST (2-3 month controlled release)  /excalibur-boost-plumeria-fertilizer-10-12-14-4-lbs/

Mar 20, 2018 Florida Colors Nursery

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