The GreenPlanet Horti Late Bloom 0-24-26 is the finishing base of the HORTI commercial line. A nitrogen-free, high-phosphorus and high-potassium dry fertiliser with magnesium and sulfur, it takes over from Horti Bloom for the final one to two weeks of flower.
Why nitrogen-free at the end
Nitrogen late in flower is known to slow ripening. Late Bloom removes it while keeping phosphorus, potassium, magnesium and sulfur high, supporting flower density and maturation through the finish.
Where it fits
Switch from Horti Bloom to Late Bloom for the last one to two weeks, pairing it with Horti Late Cal for nitrogen-free calcium. Mix at 1.5–2.5 g per litre and follow the HORTI AU feed chart (PDF).
Full specifications
| Manufacturer | GreenPlanet Nutrients (British Columbia, Canada) |
| Line | HORTI commercial line |
| Type | Dry, 100% water-soluble fertiliser |
| N-P-K | 0-24-26, plus Mg and S |
| Stage | Final 1–2 weeks of flower |
| Mix rate | 1.5–2.5 g per litre |
| Pairs with | Horti Late Cal |
| Feed chart | HORTI AU feed chart (PDF) |
| Size | 2.3 kg bag |
| Compatibility | Injectors, stock tanks, day tanks and dosing systems |
FAQ
Do I still use Horti Cal with it?
No — Horti Cal contains nitrogen. In the late phase, pair Late Bloom with Horti Late Cal instead.
Do I need HORTI RawK as well?
Late Bloom already carries high potassium for the finish. Follow the HORTI chart before adding RawK on top.
Can I combine it with other HORTI products in one stock tank?
No. Keep HORTI concentrates in separate tanks to avoid precipitation.