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Grow Nutrients

Grow Nutrients: Professional Indoor Cultivation System

Your modular nutrient system for maximum yield control. Select the component tailored to your plant's current development phase.

1. Grow Fertilizer

Sets the foundation: Maximizes root development and vegetative leaf mass.

→ To Vegetative Phase

2. Bloom Fertilizer

Energy source: Triggers hormonal shift for generative flower development.

→ To Generative Phase

3. Booster

Performance Plus: High-activity stimulants for peak yields in late flowering.

→ To Performance Layer

4. Additives

System Tool: pH control, enzyme support, and nutrient stabilization.

→ To System Maintenance

New to this?

Start securely with our base set of Grow and Bloom fertilizers. This covers all essential needs for a full life cycle.

FAQ

  • Can different brands be mixed? We recommend staying within one manufacturer system to ensure perfectly balanced nutrient ratios.
  • When do I switch from Grow to Bloom? The switch occurs simultaneously with the change to the 12/12 light cycle.
Grow Fertilizer

Grow Fertilizer: Structural Foundation for Maximum Yield...

Bloom Fertilizer

Bloom Fertilizer: High-Energy for Maximum Fruit Set Bloom...

Boosters

Booster: Peak Performance in Late Flowering Highly active...

Additives

Additives: Fine-Tuning Your Cultivation Milieu Specialized...


Top rated

Compo Hakaphos Grün 20-5-10 is the ultimate growth accelerator for your plants. Specially optimized for the vegetative phase, its nitrogen-rich profile provides the power needed for fast, healthy shoot development and deep green leaf color. Available in sizes from 1 kg up to the 25 kg industrial sack, it is the professional choice for any gardener looking to jumpstart their season.

  • 🚀 Powerful Growth Engine: Specifically calibrated for young plants and heavy feeders to maximize biomass during the early weeks.
  • 🍃 Combats Yellowing: Provides an immediate nitrogen boost to restore deep green foliage and vitality.
  • 💧 100% Residue-Free: Highly refined crystal formula dissolves instantly; safe for all irrigation and fertigation systems.
  • 🔬 Chelated Micronutrients: Iron, zinc, and manganese are fully protected for optimal root uptake even in challenging soils.
  • 🧑‍🌾 Professional Foundation: The essential start-up component of the Hakaphos nutrient system, transitioning seamlessly into bloom-specific fertilizers.
SKU:
20200723275
Variations in:
  • Quantity
HAN:
20200723275
Manufacturer:
Review:
from
9,99 € *
Available
Top rated

Compo Hakaphos Rot 8-12-24 is the ultimate harvest engine for your garden or greenhouse. Its potassium-dominant formula is specifically designed to maximize flower counts, increase fruit density, and enhance the flavor profiles of your produce. Available in sizes from 1 kg up to the 25 kg industrial sack, it is the professional choice for serious growers focusing on harvest quality.

  • 🌸 Explosive Flowering & Fruit-Set: High-potassium formula triggers continuous bud initiation and robust fruit development.
  • 🍓 Improved Harvest Quality: Facilitates sugar storage, leading to firmer, more flavorful, and longer-lasting produce.
  • 🍂 Winter Hardening: Promotes healthy tissue maturation in woody perennials, increasing frost resistance.
  • 💧 100% Residue-Free: Highly refined crystal formula dissolves instantly; optimized for all irrigation systems.
  • 🧑‍🌾 Generative System Foundation: The essential blooming component of the Hakaphos line, building on the foundation set by the vegetative growth phase.
SKU:
20200723283
Variations in:
  • Quantity
HAN:
20200723283
Manufacturer:
Review:
from
9,99 € *
Available
Top

If your lawn is struggling with heavy moss and your garden plants are showing yellow leaves despite regular watering, an acidic, calcium-deficient soil is likely the culprit. Compo Gartenkraft Dolomite Lime solves this issue with a powerful dual-action formula: it neutralizes harmful soil acidity while delivering vital calcium and magnesium in a single application. If you are looking to buy premium dolomite lime, this is your professional solution to restore a perfectly balanced, vibrant home garden.

  • 🌱 Dual Cal-Mag Complex: Safely stabilizes soil pH levels and unlocks locked-up nutrients for immediate root absorption.
  • Combats Moss & Lawn Yellowing: High-purity magnesium fuels chlorophyll production, restoring a deep, vibrant green to your turf.
  • 🧪 Structural Plant Strength: Rich in natural calcium to reinforce plant cell walls, significantly boosting drought and disease resistance.
  • 🌿 Dust-Free Application: Specially calibrated, fine granules ensure clean, even distribution by hand or mechanical push-spreader.
  • ❄️ Weather-Flexible Season Start: Highly versatile and effective for late autumn soil maintenance or early spring garden prep.
SKU:
20200729368
Variations in:
  • Quantity
HAN:
20200729368
Manufacturer:
from
3,95 € *
Available immediately
In stock

Compo Hakaphos Blau 15-10-15 is the professional choice for consistent, long-term plant health. Specially formulated to stabilize nutrients in hard, lime-rich tap water, this balanced universal fertilizer ensures your plants grow sturdy, compact, and resilient all season long. Available in sizes from 1 kg up to the 25 kg industrial sack, it is the dependable all-rounder for every gardener.

  • ⚖️ Balanced Nutrition: 15-10-15 ratio ensures steady, uniform development and strong structural integrity.
  • 💧 Hard Water Performance: Integrated acid-buffering keeps nutrients available even in high-alkalinity water, preventing lockout.
  • 🛡️ Stress Resilience: Promotes compact growth, making plants more resistant to heat, drought, and physical damage.
  • 🧪 100% Residue-Free: Highly refined crystal formula dissolves instantly; safe for all irrigation and fertigation systems.
  • 🧑‍🌾 Reliable All-Rounder: The foundation of the Hakaphos line for gardeners who prioritize consistency and ease of use throughout the summer.
SKU:
20200723281
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  • Quantity
HAN:
20200723281
Manufacturer:
from
9,99 € *
Available
Out of stock

Guanokalong Powder at a Glance

  • 100% natural, vegan bat guano
  • Contains essential nutrients (NPK 1+10+1)
  • Stimulates microbial soil life
  • Supports healthy root development
  • Ideal for both indoor and outdoor use
  • Available in packaging sizes from 0.5 kg to 25 kg
SKU:
20200728336
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  • Quantity
HAN:
20200728336
Manufacturer:
from
9,00 € *
Item out of stock
In stock

FLO – Organic Living Soil Fertilizer

  • 🌱 One-time mix for weeks of nutrition
  • 🪱 Includes Mycorrhiza & Trichoderma for strong roots
  • ♻️ Sustainable & ideal as a soil enhancer
  • 🦇 Organic formula with guano, algae & minerals
SKU:
2020070610
Variations in:
  • Content
HAN:
2020070610
Manufacturer:
Content 
from
59,82 € *
Available
In stock

GK-Organics® Seaweed Powder

  • 🌿 100% vegan & organic soil enhancer
  • 💧 Improves moisture balance & soil quality
  • 🌱 Stimulates root and plant growth
  • 🛡️ Strengthens plants & protects against stress
  • 📦 Available in 0.5L – 25L
SKU:
20200728346
Variations in:
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HAN:
20200728346
Manufacturer:
from
15,11 € *
Available

ICL Nova PeaK MKP (0-52-34) is the ultimate precision tool for the final stage of your crop cycle. This high-purity, nitrogen-free mono-potassium phosphate is designed as a specialized add-on to provide complete control over phosphorus and potassium levels without interfering with vegetative development. Available in various pack sizes—from the 1 kg testing bag to the 25 kg industrial sack—it offers unmatched efficiency for serious growers.

  • 🎯 Nitrogen-Free Finish: Supports maturation and fruit density by eliminating excess nitrogen late in the cycle.
  • 💎 High-Performance Purity: Concentrated 52% phosphorus and 34% potassium—far more efficient and cost-effective than diluted liquid boosters.
  • 🍓 Enhanced Harvest Quality: Facilitates carbohydrate storage in fruit for improved density, consistency, and flavor.
  • 💧 Residue-Free Solubility: Dissolves instantly and perfectly; safe for all high-end drip and hydroponic irrigation systems.
  • 🧑‍🌾 Root-Safe Formulation: Low salt index, free from sodium and chlorides, ensuring maximum safety for delicate root systems during the finishing phase.
SKU:
2020070722
Variations in:
  • Quantity
HAN:
2020070722
Manufacturer:
Quantity 
from
8,33 € *
Available immediately
In stock

GK-Organics® Veg Pearls

  • 🌱 100% vegan fertiliser for vigorous growth
  • 💧 Reduces irrigation needs & improves soil life
  • 🌿 Slow- and fast-releasing nitrogen
  • 🛡️ No leaching, no leaf scorch
SKU:
20200728349
Variations in:
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HAN:
20200728349
Manufacturer:
from
8,66 € *
Available
In stock

BioBizz Pre Mix – Organic Soil Improver

  • Promotes strong roots and healthy growth
  • Improves soil life with microbes and fungi
  • Ideal for transplanting or reused soil
SKU:
2020071399
Variations in:
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HAN:
2020071399
Manufacturer:
Content 
from
18,87 € *
Available
In stock

Guanokalong® Black Pellets

  • 🌿 Organic super fertiliser with natural bat guano and humic acids
  • 🏡 Suitable for indoor and outdoor use
  • 🌱 Stimulates root growth and abundant flowering
  • 🛡️ Protects against bacterial infections
  • ⚖️ Slow nutrient release reduces leaf scorch risk
  • 💧 Reduces stress and water needs during transplantation
SKU:
20200728341
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HAN:
20200728341
Manufacturer:
from
12,00 € *
Available
In stock

Terra Aquatica Silicate – Natural Strength with Silicic Acid

  • 🌱 Mineral-based plant strengthening agent with 84% silicate salts
  • 🧪 Successor to GHE Mineral Magic
  • 🛡️ Stabilizes pH and EC, protects against heavy metals
  • 💧 Suitable for soil, foliar, and nutrient solution use
  • 🌿 Provides silicic acid & ortho-silicic acid
SKU:
202007031
Variations in:
  • Content
HAN:
202007031
Manufacturer:
Content 
from
19,49 € *
Available
In stock

Guanokalong® Pellets – Organic Boost for Roots & Bloom

  • 🌱 Stimulates strong root growth and flower development
  • 🍓 Improves flavour, aroma and final yield
  • 💨 Pellet form – ideal for outdoor use
  • 🛡️ Natural protection against diseases
  • ♻️ Slow-release with low risk of overfertilisation
SKU:
20200728338
Variations in:
  • Quantity
HAN:
20200728338
Manufacturer:
from
5,80 € *
Available

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