• Green Planet Nutrients GP3 Bloom - 10 Litre
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Product benefits

  • All-Stage Support
  • Growth Support
  • Bloom Support
  • Essential Nutrient Support
  • Micronutrient Support
  • Stronger Structure
  • Custom Ratios
  • Complete Nutrition

This product may offer additional benefits beyond those listed.

Frequently purchased together

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Green Planet Nutrients GP3 Bloom - 10 Litre

Vegetative Stage Flowering Stage Indoor Outdoor Regular Watering Watering Systems Hydroponics Coco Coir Safe Soil Soilless
$85.84
$85.84
Shipping calculated at checkout.

OTHER AVAILABLE SIZES / MODELS:

1 Litre 4 Litre 10 Litre 23 Litre
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Manufacturer Recommended Products

These manufacturer-recommended products are designed to be used with this product for proper performance and best results. In multi-component systems, all recommended components should be used together as directed to help ensure effective use.

Product benefits

  • All-Stage Support
  • Growth Support
  • Bloom Support
  • Essential Nutrient Support
  • Micronutrient Support
  • Stronger Structure
  • Custom Ratios
  • Complete Nutrition

This product may offer additional benefits beyond those listed.

Description
Green Planet Nutrients GP3 Bloom, Grow, Micro is a 3-part base nutrient system of liquid base nutrients built for complete plant nutrition from vegetative growth through flowering. This three-bottle base fertilizer separates key roles into a grow formula, a micro formula, and a bloom formula so your garden gets stage-appropriate support without unnecessary extras.

As a dedicated vegetative stage nutrient, GP3 Grow is designed around the demands of early plant development, when leafy green foliage and a strong root system are being built. GreenPlanet positions nitrogen as central to photosynthesis and chlorophyll production for green, healthy growth, while soluble potash supports functions tied to overall plant performance and the transition into the bloom stage. A practical differentiator across the line is the “no synthetic dyes” approach paired with ethically sourced ingredients, keeping the focus on clean, consistent base nutrition.

GP3 Micro is the bridge bottle in the GP3 base nutrient system, providing macro and micronutrients that support both the vegetative stage and flowering stage. GreenPlanet highlights an extensive range of micronutrients and calls out iron, boron, and calcium as key elements that benefit the plant through its life cycle. Iron is connected to enzyme function and chlorophyll synthesis, boron supports the structural integrity of cell walls, and calcium supports rigid cell walls for sturdy plant structure. Together, that micro formula emphasis helps keep stems, stalks, and branches robust while maintaining balanced support across the full cycle.

For bloom-stage focus, GP3 Bloom is built to provide the nutrients plants require during the flowering stage, when plants start to fruit and produce flowers through to harvest timing. GreenPlanet emphasizes higher phosphorus and potassium for flower formation and bloom performance, with potassium tied to converting phosphorus into usable energy and strengthening cell walls to support heavy flowers. The bottle roles are clearly defined, and the NPK labels reflect that separation in one simple snapshot: 2-1-6 (grow), 5-0-1 (micro), and 0-5-4 (bloom). GP3 Bloom is also positioned for heavier fruit development during flowering, keeping the outcome centered on bloom and fruiting priorities.

Suitability is broad across common garden styles, including hydroponics, drain to waste, recirculating systems, and soil/soilless media. This is a good fit for growers who want a clear 3-part base nutrient system with distinct vegetative stage and flowering stage support, plus a micro formula that rounds out full-spectrum nutrition with key micronutrients.

Product benefits: Vegetative Stage; Flowering Stage; Indoor; Outdoor; Regular Watering; Watering Systems; Hydroponics; Coco Coir Safe; Soil; Soilless; All-Stage Support; Growth Support; Bloom Support; Essential Nutrient Support; Micronutrient Support; Stronger Structure; Custom Ratios; Complete Nutrition.

Guaranteed analysis: Available Phosphate (P2O5): 5.0%; Soluble Potash (K2O): 4.0%; Water Soluble Magnesium (Mg): 1.5%; Sulfur (S): 2.0%.

Derived from: Potassium Sulfate; Monopotassium Phosphate; Dipotassium Phosphate; Magnesium Sulfate.

How To Use

How to Use Green Planet Nutrients GP3 Bloom - 10 Litre

Step-by-step mixing and feeding instructions for Green Planet Nutrients GP3 Bloom - 10 Litre.

Mixing & preparation

Fill your reservoir or watering container with clean, room-temperature water first. Shake the bottle of Green Planet Nutrients GP3 Bloom - 10 Litre well before every use. Using the feeding schedule below, measure the recommended dose and add it directly to the water while stirring. Allow the solution to mix fully before adding any other fertilizers, additives, or supplements.

Always add nutrients to water — not the other way around. Mix thoroughly between products to ensure an even, stable nutrient solution.

Week-by-week feeding schedule

Vegetative stage — Bloom

  • Week 1: mix 0.25 ml per litre of water or nutrient solution.
  • Week 2: mix 0.25 ml per litre of water or nutrient solution.
  • Week 3: mix 1.0 ml per litre of water or nutrient solution.

Flowering stage — Bloom

  • Week 1: mix 1.5 ml per litre of water or nutrient solution.
  • Week 2: mix 1.5 ml per litre of water or nutrient solution.
  • Week 3: mix 1.5 ml per litre of water or nutrient solution.
  • Week 4: mix 1.5 ml per litre of water or nutrient solution.
  • Week 5: mix 1.5 ml per litre of water or nutrient solution.
  • Week 6: mix 2.0 ml per litre of water or nutrient solution.
  • Week 7: mix 2.0 ml per litre of water or nutrient solution.
  • Week 8: do not use this product during this week of flowering.

Tips for best results

  • Maintain pH and EC/ppm within the range recommended for your growing medium and crop.
  • Use fresh nutrient solution whenever possible and avoid leaving mixed solution stagnant for long periods.
  • Store nutrients in a cool, dark place away from direct sunlight and extreme temperatures.
  • Keep bottles tightly sealed when not in use to reduce air exposure and preserve product quality.
  • Use clean measuring tools and regularly rinse or clean your reservoir, lines, and irrigation equipment.

Common mistakes to avoid

  • Do not mix different nutrients or additives together in concentrated form before adding them to water.
  • Do not exceed the recommended dosage unless you are following a tested, crop-specific feeding plan.
  • Do not skip pH or EC/ppm checks when growing in hydroponic or soilless systems.
  • Do not allow the nutrient solution to freeze or overheat, as this can damage the formulation.
  • Do not ignore the directions on the product label for your specific crop, growth stage, and system type.

Warnings & Safety

Warning – Important Safety Information

This product may cause mild skin irritation and eye irritation. Avoid unnecessary contact with skin, eyes, and clothing. Use only as directed.

General safety precautions

Read and follow all instructions on the product label and any accompanying documentation before use. Keep out of reach of children and pets. Do not ingest. Avoid breathing vapours, mist, or dust that may be generated during handling or use.

Wear appropriate personal protective equipment (PPE), such as protective gloves, long sleeves, long pants and closed-toe footwear. When there is a risk of splashing or airborne particles, use safety glasses or other suitable eye and face protection.

First aid – skin contact

IF ON SKIN OR HAIR: Remove contaminated clothing immediately. Rinse skin with clean water for several minutes, then wash with mild soap and water. If irritation or redness develops and persists, seek medical attention. Wash contaminated clothing before reuse.

First aid – eye contact

IF IN EYES: Rinse cautiously with clean water for several minutes, keeping eyelids open. Remove contact lenses if present and easy to do. Continue rinsing. If irritation persists, obtain medical advice.

First aid – ingestion and inhalation

IF SWALLOWED: Rinse mouth thoroughly with water. Do not induce vomiting unless instructed by a medical professional. Seek medical attention if you feel unwell.

IF INHALED: Move the person to fresh air and keep them comfortable for breathing. If coughing, breathing difficulty, dizziness or other symptoms occur, seek medical assistance.

Storage and handling

Store this product in its original closed container, in a cool, dry and well-ventilated area. Protect from extreme temperatures and direct sunlight. Keep container tightly sealed when not in use.

Avoid release to drains, natural waterways or outdoor soil. Dispose of unused product and empty containers in accordance with local regulations and the directions on the label.

Important: If medical advice is needed, keep the product label or container available. Always follow the specific instructions and safety recommendations provided by the manufacturer. This safety notice is intended as general guidance and does not replace official label directions or documentation.

Guaranteed Minimum Analysis
Available Phosphate (P2O5) 5.0%
Soluble Potash (K2O) 4.0%
Water Soluble Magnesium (Mg) 1.5%
Sulfur (S) 2.0%

Derived From
Potassium Sulfate
Monopotassium Phosphate
Dipotassium Phosphate
Magnesium Sulfate

Frequently Asked Questions
What does available phosphate (P₂O₅) do for plant growth?

Available Phosphate (P₂O₅) supports root development, energy transfer, and early structural growth by providing a form of phosphorus that plants can absorb and use quickly.

Read the full guide

What does dipotassium phosphate do for plants?

Dipotassium phosphate provides fast, plant-available phosphate and potassium, which supports energy transfer for root and growth processes while improving water control and sugar movement through the plant. It’s important because these two nutrients work together to keep growth steady, but it’s also unique because it can raise root-zone pH compared with similar phosphate sources, so the same dose that helps vigor can also cause micronutrient lockouts if balance and pH stability are ignored.

Read the full guide

Why is soluble potash (K2O) important for plants?

Soluble potash (K2O) is important because it helps plants control water use, move sugars to new growth and fruit, and build stronger, higher-quality structure under stress. It’s unique from many other nutrients because it acts more like a regulator and transport helper than a direct “building material,” so the biggest benefits show up as steadier growth, stronger stems, and better finishing instead of just bigger leaves.

Read the full guide

Why is sulfur (S) important for plant growth?

Sulfur is important because plants need it to build key amino acids and proteins that drive real growth, strong structure, and efficient use of nitrogen, making it uniquely different from “look-alike” nutrients that may change leaf color without supporting the plant’s core building process.

Read the full guide

Why is water soluble magnesium important for plant growth?

Water soluble magnesium is important because it quickly restores the plant’s ability to make chlorophyll and produce energy, which helps stop interveinal yellowing on older leaves and improves overall nutrient use; it’s unique because it becomes available immediately in water, making it faster and more predictable than slower magnesium sources.

Read the full guide

What does magnesium sulfate do for plants?

Magnesium sulfate supplies magnesium for chlorophyll and sugar movement plus sulfur for protein building, helping plants stay efficient and green during high-demand growth. It’s unique because it adds magnesium without extra nitrogen or calcium, so it corrects magnesium issues with fewer side effects when balance is the real goal.

Read the full guide

What does monopotassium phosphate do for flowering plants?

Monopotassium phosphate provides fast phosphorus and potassium that support energy use, nutrient flow, and bloom development without adding nitrogen, so it helps flowering progress cleanly without pushing extra leafy growth. It’s unique because it delivers a focused PK boost in a highly soluble form, which can correct stage-related demand quickly, but it must be used carefully to avoid potassium-heavy imbalances that can block calcium and magnesium uptake.

Read the full guide

Is potassium sulfate better than other potassium sources for sensitive plants?

Potassium sulfate is often preferred because it supplies potassium without added chloride and also provides sulfur, which supports protein-building and efficient nutrient use, making it a cleaner, balanced option when plants are sensitive to chloride or when you want potassium without pushing extra nitrogen or phosphorus.

Read the full guide

Safety & Technical Documents

Frequently purchased together

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Nutrient Feed Chart

Vegetative — Week 1

  1. Micro
    —
  2. Grow
    —
  3. Bloom
    —
  4. Vitathrive
    —
  5. Rezin
    —
  6. Massive
    —
  7. Liquid Weight
    —

Flowering — Week 1

  1. Micro
    —
  2. Grow
    —
  3. Bloom
    —
  4. Vitathrive
    —
  5. Rezin
    —
  6. Massive
    —
  7. Liquid Weight
    —

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