Horti Bloom by Green Planet — 5-15-26 Dry Flower Base Nutrient
GP-NUT-HORTIBLOOM-2.3KG
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Pairs well with
Horti Bloom is Green Planet's dry base fertiliser for the flowering stage — a 5-15-26 formula with magnesium, sulphur, and a full spectrum of micronutrients, built for early to mid flower. It delivers the array of macro, micro, and secondary nutrients bloom formation runs on: phosphorus stepped up for bud development, potassium loaded for flower size and density. Part of the HORTI commercial line, it's fully water-soluble and pH stable with no fillers and zero sediment — clean through hand mixing, stock tanks, injectors, and dosing systems, in soil, coco, and hydro.
Specifications
- Mix each HORTI product in its own stock tank — combining the concentrates can cause precipitation. Dose into the reservoir separately.
- Keep Horti Cal running alongside it through flower — the Ca/Mg support prevents mid-bloom deficiencies, especially in coco.
- Two weeks out from harvest, hand over to Horti Late Bloom to finish — Bloom is the early-to-mid formula, not the finisher.
How to use
Pairs well with
The dry Ca/Mg supplement that runs alongside Bloom through flower.
Horti Late BloomThe finisher — takes over for the last two weeks of flower.
Horti GrowThe veg base that runs before Bloom takes over at the flip.
FAQ
Can I use Horti Bloom for the entire flowering stage?
No. It's formulated for early to mid flower — Green Planet's program hands over to Horti Late Bloom for the final two weeks to finish the cycle.
Is it a complete base nutrient?
Yes. It carries the full macro, micro, and secondary spectrum for its stage. The HORTI program runs Horti Cal alongside it for calcium and magnesium balance.
Does it work in hydro as well as soil and coco?
Yes. It's fully water-soluble with zero sediment, so it suits hand mixing, stock tanks, injectors, and dosing systems across soil, coco, and hydro.
Can I mix it with the other HORTI powders in one tank?
No. Prepare each HORTI product in its own stock tank to avoid precipitation, then dose each into the main reservoir separately.
Do I still need a bloom booster with it?
No, it stands alone as the flowering base — but additives like Massive or Karbo Boost can stack on top if you're chasing extra weight, the same way they run over any base program.
The bloom base built for the flip
Horti Bloom — dry 5-15-26 nutrition for early to mid flower. Free shipping over $499*.