9-month controlled release
Excalibur IX
NPK 11-11-13 with micronutrients, made for longer warm seasons and growers who want a longer controlled-release feeding window.
These purchase links leave this site and open floridacolorsplumeria.com in a new tab.
Best use
The longer-season Excalibur option
Excalibur IX is built for plumeria that remain active through a longer warm season. It is the choice for growers who want a nine-month feed rather than a shorter six-month release.
- Best matched to warm climates or extended growing seasons.
- Good for growers who prefer fewer fertilizer applications.
- Supports steady nutrition while warmth and moisture activate release.
- Includes micronutrients and boron for balanced development.
Quick choice
Choose IX if your plumeria stay awake and growing for most of the year, or if your climate gives you a long warm feeding season.
Open IX at Florida ColorsThis link opens floridacolorsplumeria.com in a new tab.
IX compared with the rest of the line
| Formula | Use it when |
|---|---|
| BOOST | The plant needs establishment support after rooting, repotting, grafting, or stress. |
| VI | You want a six-month feed for a defined active season. |
| IX | You want a nine-month controlled-release feed for a longer growing season. |
Frequently asked questions
Is IX always better because it lasts longer?
No. The best formula depends on how long your plumeria stay active. A longer release window helps only when the plant and climate can use it.
Should I still watch the plant?
Yes. Controlled-release fertilizer makes feeding easier, but watering, heat, container mix, drainage, and plant activity still matter.
Where do I buy it?
Use the Florida Colors Nursery product page for current price, size, stock, and shipping information.