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Green Planet GP3 Grow 5L
Green Planet GP3 Grow 5L
Green Planet GP3 Grow 5L
Green Planet GP3 Grow 5L

Green Planet GP3 Grow 5L

(19 reviews)

This unrivalled 3 part nutrient system consists of a combination of all primary, secondary and micronutrients in three separate formulas; Grow, Bloom and Micro. GP3 contains pure ingredients, better nutrient ratios, a more complete formulation, better results and overall better value. It contains no carbonates or synthetic dyes and has the cleanest salt and residue index available. GP3 contains three unique chelated iron sources designed for a broad range of pH environments. Like a recipe, the GP3 feeding program has the best results when the formula is followed. As explained above, a feeding program is a schedule of plant nutrition that can be mapped in terms of fertilizer dosage, ratio, supplementation, and use over time. Throughout the weeks of vegetative and flowering growth, the GP3 feeding program will guide the grower through different stages of a plant’s life, and offer general feeding ratios, doses, and helpfully supplementation tips. All the measurements of plant food on GreenPlanet’s feeding programs are described in milliliters of fertilizers per liter of water.

This unrivalled 3 part nutrient system consists of a combination of all primary, secondary and micronutrients in three separate formulas; Grow, Bloom and Micro. GP3 contains pure ingredients, better nutrient ratios, a more complete formulation, better results and overall better value. It contains no carbonates or synthetic dyes and has the cleanest salt and residue index available. GP3 contains three unique chelated iron sources designed for a broad range of pH environments. Like a recipe, the GP3 feeding program has the best results when the formula is followed. As explained above, a feeding program is a schedule of plant nutrition that can be mapped in terms of fertilizer dosage, ratio, supplementation, and use over time. Throughout the weeks of vegetative and flowering growth, the GP3 feeding program will guide the grower through different stages of a plant’s life, and offer general feeding ratios, doses, and helpfully supplementation tips. All the measurements of plant food on GreenPlanet’s feeding programs are described in milliliters of fertilizers per liter of water.

$21.00 - $273.99

in 24 offers

last seen 28 Oct 2026

The lowest price we last saw for Green Planet GP3 Grow 5L was $21.00 at Happy Hydroponics AU, compared across 21 retailers (last seen 28 Oct 2026). Prices may have changed since.

The all-time low we recorded was $15.00 on 17 Sept 2024.

Prices last updated 28 Oct 2026.

Volume:

Green Planet GP3 Grow 5L

$21.00

last seen 28 Oct 2026
(19 reviews)

This unrivalled 3 part nutrient system consists of a combination of all primary, secondary and micronutrients in three separate formulas; Grow, Bloom and Micro. GP3 contains pure ingredients, better nutrient ratios, a more complete formulation, better results and overall better value. It contains no carbonates or synthetic dyes and has the cleanest salt and residue index available. GP3 contains three unique chelated iron sources designed for a broad range of pH environments. Like a recipe, the GP3 feeding program has the best results when the formula is followed. As explained above, a feeding program is a schedule of plant nutrition that can be mapped in terms of fertilizer dosage, ratio, supplementation, and use over time. Throughout the weeks of vegetative and flowering growth, the GP3 feeding program will guide the grower through different stages of a plant’s life, and offer general feeding ratios, doses, and helpfully supplementation tips. All the measurements of plant food on GreenPlanet’s feeding programs are described in milliliters of fertilizers per liter of water.

This unrivalled 3 part nutrient system consists of a combination of all primary, secondary and micronutrients in three separate formulas; Grow, Bloom and Micro. GP3 contains pure ingredients, better nutrient ratios, a more complete formulation, better results and overall better value. It contains no carbonates or synthetic dyes and has the cleanest salt and residue index available. GP3 contains three unique chelated iron sources designed for a broad range of pH environments. Like a recipe, the GP3 feeding program has the best results when the formula is followed. As explained above, a feeding program is a schedule of plant nutrition that can be mapped in terms of fertilizer dosage, ratio, supplementation, and use over time. Throughout the weeks of vegetative and flowering growth, the GP3 feeding program will guide the grower through different stages of a plant’s life, and offer general feeding ratios, doses, and helpfully supplementation tips. All the measurements of plant food on GreenPlanet’s feeding programs are described in milliliters of fertilizers per liter of water.

1.1 US gallons
1.3 US gallons
33.8 US fluid ounces

Price comparison

Price data powered by pricesAPI.io

Last updated at 28/10/2026 02:22:45

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$25.97

Green Planet Grow - [Size: 1L]

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=happyhydroponics.com.au&sz=64Happy Hydroponics AU

$21.00

Green Planet GP3 Grow 1L

Delivery between 2–9 Nov $13.25

https://www.google.com/s2/favicons?domain=hydrooasis.com.au&sz=64Hydro Oasis

$22.49

Green Planet GP3 Grow — Vegetative 3-Part Hydroponic Base Nutrient 1 L

Delivery between 5–10 Nov $19.99

https://www.google.com/s2/favicons?domain=quickbloomlights.com.au&sz=64Quick Bloom Lights

$22.95

GP3 Grow by Green Planet - Healthy Plant Growth 1 Liter

Delivery between 30 Oct – 4 Nov $10.95

https://www.google.com/s2/favicons?domain=eppinghydroponics.com.au&sz=64Epping Hydroponics

$23.50

GreenPlanet GP3 Grow - 1L

https://www.google.com/s2/favicons?domain=thegrowguys.com.au&sz=64The Grow Guys

$23.95

GP3 Grow by Green Planet — 2-1-6 Veg Base Nutrient | The Grow Guys 1L

Free delivery

https://www.google.com/s2/favicons?domain=bluebucket.com.au&sz=64bluebucket-online

$24.20

Green Planet GP3 (1part) 1L Grow

Delivery $15

https://www.google.com/s2/favicons?domain=pakenhamhydroponics.com.au&sz=64Pakenham Hydroponics

$25.00

Green Planet GP3 GROW | 3 Part Nutrient 1L SINGLE

Delivery $26.65

https://www.google.com/s2/favicons?domain=hydromart.com.au&sz=64hydromart.com.au

$25.00

Green Planet GP3 Grow 1L/5L/20L Hydroponic Nutrients

https://www.google.com/s2/favicons?domain=franshydroponics.com.au&sz=64Fran's Hydroponics

$25.00

Green Planet GP3 Grow, 1L

Delivery $14.95

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

General
Select ColourBlack
Country Made InAustralia

Price comparison

Updated 10 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$25.97

Green Planet Grow - [Size: 1L]

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=happyhydroponics.com.au&sz=64
Happy Hydroponics AU

$21.00

Green Planet GP3 Grow 1L

Delivery between 2–9 Nov $13.25

https://www.google.com/s2/favicons?domain=hydrooasis.com.au&sz=64
Hydro Oasis

$22.49

Green Planet GP3 Grow — Vegetative 3-Part Hydroponic Base Nutrient 1 L

Delivery between 5–10 Nov $19.99

https://www.google.com/s2/favicons?domain=quickbloomlights.com.au&sz=64
Quick Bloom Lights

$22.95

GP3 Grow by Green Planet - Healthy Plant Growth 1 Liter

Delivery between 30 Oct – 4 Nov $10.95

https://www.google.com/s2/favicons?domain=eppinghydroponics.com.au&sz=64
Epping Hydroponics

$23.50

GreenPlanet GP3 Grow - 1L

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

General
Select ColourBlack
Country Made InAustralia

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