Green Planet GP3 Bloom (1L / 5L)

What is Green Planet GP3 Bloom and do I need the other parts?

GP3 Bloom is the bloom-phase nutrient in Green Planet's 3-part system. It's not a standalone fertiliser—use it with GP3 Grow and GP3 Micro to deliver a full spectrum of nutrients from veg through flowering.

When should I start using GP3 Bloom?

Begin adding GP3 Bloom at the transition to flowering and increase use as bloom progresses. Follow a feed chart for best results. Avoid using it solo in veg—it’s designed to shine once buds and flowers are forming.

How do I mix GP3 Bloom correctly?

Add nutrients to water one at a time: start with GP3 Micro, then GP3 Grow, and finally GP3 Bloom. Stir thoroughly between each and adjust pH last. Never mix concentrates directly—doing so can cause nutrient lockout.

Can I use GP3 Bloom in soil, coco, or hydroponics?

Yes—GP3 Bloom works in all major grow mediums when used as part of the full GP3 system. It's compatible with drain-to-waste, recirculating hydro, and autopots. Keep systems clean to prevent buildup.

Does GP3 Bloom improve flower size or resin production?

It supports strong flower and fruit development by providing essential phosphorus and potassium. Results depend on full nutrition, lighting, and environmental conditions—GP3 Bloom helps when the rest is dialled in.

Can I use GP3 Bloom with Cal-Mag, silica, or bloom boosters?

Yes, if needed. Add silica to plain water first, then GP3 nutrients. Use Cal-Mag if your water is soft or plants show deficiencies. Go easy on PK boosters or sweeteners—stacking too much can cause issues.

Do I need to check EC and pH when using GP3 Bloom?

In coco and hydro, absolutely. Aim for mid-5s to low 6s pH depending on your medium. Track EC to avoid overfeeding. Soil growers have more wiggle room but still benefit from occasional pH and EC checks.

How do I prevent overfeeding or lockout with GP3 Bloom?

Start with conservative doses, especially if adding boosters. Watch for clawed, burnt, or stalled growth. Runoff and occasional flushing in coco/hydro help manage salt buildup. Keep your pH stable and consistent.

Can GP3 Bloom cause yellowing or weak flowers?

If pH is off or your roots are stressed, nutrients may get locked out. Yellowing or slow flower development often points to pH drift, overfeeding, or salt buildup—not a problem with GP3 itself.

Can I use GP3 Bloom for edible crops or ornamentals?

Yes—just scale the dose appropriately for the plant. Avoid spraying directly on edible leaves, especially near harvest. As with all nutrients, follow good hygiene and harvest practices.

How should I store GP3 Bloom?

Keep the bottle sealed, out of direct sunlight, and stored at stable room temperature. Shake before use. If it's been exposed to cold, let it warm up and shake again before mixing.

Does GP3 Bloom have a shelf life?

Yes. When stored properly, it lasts a long time. If the liquid smells strange, separates excessively, or won’t remix, it’s safest to replace it.

Is GP3 Bloom beginner-friendly?

Yes—just remember two rules: never mix concentrates directly, and don’t feed too strong too early. Use a feed chart, start light, and monitor your plant’s response.