Formula selection
Seasonal Feeding: Excalibur VI vs IX
Choose VI or IX by the length of the active growing season, not by a wish for faster results.
Quick comparison
| Formula | Best fit | Think about |
|---|---|---|
| Excalibur VI | Shorter or moderate growing seasons, mid-season refresh decisions, and growers who want a six-month release window. | Good fit where plants wake in spring, grow through summer, then slow later in the year. |
| Excalibur IX | Long warm seasons, tropical or near-tropical conditions, and growers who want longer controlled-release feeding. | Good fit where plumeria stay awake and actively growing for much of the year. |
| BOOST | Establishment, recovery, rooted cuttings, grafts, repotting, and targeted support. | Use as support, not as the whole seasonal program. |
Choose by season length
Shorter season
Use VI when the active season is clear but not year-round.
Long season
Use IX when warm conditions continue long enough to justify the longer release window.
Recovery moment
Use BOOST when the plant needs establishment help, then return to the seasonal plan.