GP3 Grow by Green Planet
GP3 Grow by Green Planet
GP3 Grow by Green Planet

GP3 Grow by Green Planet — 2-1-6 Veg Base Nutrient

GP-NUT-GP3GROW-1L

Regular price$23.95
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  • Free shipping on orders over $499*

GP3 Grow is the vegetative-stage component of Green Planet's GP3 3-part base nutrient system. Its nitrogen-rich 2-1-6 formula drives strong, leafy vegetative growth and builds the root structure and plant frame that carries heavy flower later on. Free of synthetic dyes and carbonates, with three forms of chelated iron for reliable uptake across a wide pH range, it runs clean in coco, hydro, and soil — recirculating or drain-to-waste. That's the strength of a 3-part base: a more complete nutrient profile, and the ability to give your plants exactly what they need at exactly the right time — the control that crafts bigger yields.

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The 3-Part Advantage A more complete nutrient profile, with each part adjusted independently so plants get what they need at the right time — that control is how bigger yields get built.
Built for Veg The 2-1-6 nitrogen-rich formula fuels photosynthesis and chlorophyll production for fast, healthy vegetative growth.
Runs Clean No synthetic dyes, no carbonates. High-purity salts keep reservoirs residue-free and reduce lockout risk.
Stable Across pH Three forms of chelated iron keep micronutrients available across a broad pH range for consistent uptake.
Any System, Any Medium Works in coco, hydro, and soil — clean enough for recirculating systems, powerful enough for drain-to-waste.

Specifications

NPK: 2-1-6
Stage: Vegetative
System role: Part of the GP3 3-part base
Use with: GP3 Micro (5-0-1) and GP3 Bloom (0-5-4)
Formulation: No synthetic dyes or carbonates
Iron: Three chelated forms for broad pH stability
Media: Coco, hydro, soil
Systems: Recirculating and drain-to-waste
Sizes: 1L, 5L, 20L
Brand: Green Planet
Grow Guys Tip
  • Add each GP3 part to the reservoir separately, stirring thoroughly between each. Adjust pH last.
  • Never combine the GP3 concentrates together undiluted — Green Planet warns this can cause nutrient lockout.
  • Follow the Green Planet GP3 feed chart for weekly rates, and adjust ratios between Grow, Micro, and Bloom as your plants shift stages.

How to Use It

1 Fill your reservoir or watering container with clean water and shake the bottle well before use.
2 Add GP3 Grow at the rate on the Green Planet feed chart for your week of growth, and stir thoroughly.
3 Add the other GP3 parts separately per the feed chart, stirring between each, then check and adjust pH.
4 Feed as normal. Adjust the Grow, Micro, and Bloom ratios week to week as plants move from veg toward flower.

Pairs Well With

Frequently Asked Questions

Why use a 3-part nutrient instead of a one-bottle feed?

A 3-part base gives you a more complete nutrient profile and lets you adjust each part independently, so your plants get exactly what they need at the right stage. That control across the whole cycle is what crafts bigger yields.

Do I need GP3 Micro and Bloom as well?

Yes. GP3 Grow is one part of a 3-part system and is designed to run alongside GP3 Micro and GP3 Bloom for balanced nutrition across the full cycle.

What is the NPK of GP3 Grow?

GP3 Grow is 2-1-6 — a nitrogen and potassium-forward profile built for the vegetative stage.

Can I use it in coco, hydro, and soil?

Yes. GP3 Grow is formulated for all growing media and works in both recirculating and drain-to-waste systems.

Can I mix the GP3 concentrates together before adding to water?

No. Green Planet advises that combining the concentrates in undiluted form can cause nutrient lockout. Always add each part to the reservoir separately, stirring between each.

Does it contain synthetic dyes?

No. GP3 Grow is free of synthetic dyes and carbonates, with a clean salt and residue profile that keeps reservoirs and lines clear.

Start Strong, Finish Heavy

Ships Australia-wide from Tasmania. Free shipping over $499*.

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