GROTEK
Grotek™ Science‑Based Nutrients & Additives
Grotek has delivered science‑based plant nutrients and additives for over 20 years, earning global trust for consistent, high‑performance results. By combining select organic extracts with mineral fertilizers, Grotek products are formulated to support vigorous growth and help improve overall harvest quality across controlled growing environments.
Grotek Vitamax Pro 2-3-2 (4 L)
Q115293
- Organic-based nutrient with land and sea inputs.
- Encourages lush, green growth and strong roots.
- Contains organic matter for beneficial microbes.
- Supports soil quality and plant resilience.
- Mix 1 mL/L (1/4 tsp per 1.25 qt) weekly.
- 1 L (33.8 fl oz) makes 1,000 L (264 gal).
- Size: 4 L (1 gal) bottle.
Grotek Vitamax Pro 2-3-2 (23 L)
Q115294
- Organic-based nutrient with land and sea inputs.
- Encourages lush, green growth and strong roots.
- Contains organic matter for beneficial microbes.
- Supports soil quality and plant resilience.
- Mix 1 mL/L (1/4 tsp per 1.25 qt) weekly.
- 1 L (33.8 fl oz) makes 1,000 L (264 gal).
- Size: 23 L (6 gal) bottle.
Grotek Blossom Blaster 0-48-31 (500 g)
Q115295
- Concentrated nutrient formula for flowering sites.
- Provides abundant nutrients for rapid development.
- Supports prolific blooming and bud filling.
- High phosphorus and potassium levels.
- Mix 1 g per 10 L (1/4 tsp per 2.6 gal).
- 500 g (17.6 oz) makes 5,000 L (1,320 gal).
- Size:500 g (1.1 lb) container.
Grotek Blossom Blaster 0-48-31 (1 kg)
Q115296
- Concentrated nutrient formula for flowering sites.
- Provides abundant nutrients for rapid development.
- Supports prolific blooming and bud filling.
- High phosphorus and potassium levels.
- Mix 1 g per 10 L (1/4 tsp per 2.6 gal).
- 500 g (17.6 oz) makes 5,000 L (1,320 gal).
- Size: 1 kg (2.2 lb) container.
Grotek Blossom Blaster 0-48-31 (2.5 kg)
Q115297
- Concentrated nutrient formula for flowering sites.
- Provides abundant nutrients for rapid development.
- Supports prolific blooming and bud filling.
- High phosphorus and potassium levels.
- Mix 1 g per 10 L (1/4 tsp per 2.6 gal).
- 500 g (17.6 oz) makes 5,000 L (1,320 gal).
- Size: 2.5 kg (5.5 lb) container.
Grotek Carbo Max 0-0-1 (2.5 kg)
Q115299
- Soluble sugar-based energy source for plants and soil microbes.
- Simple sugars support soil microorganisms' nutrient conversion.
- Increases nutrient availability during ripening stage.
- Added potassium supports sugar levels in flowers and fruit.
- Use with every fertiliser application in bloom cycle.
- 500 g makes 1,900 L; mix 100 g per 380 L of solution.
- Size: 2.5 kg (5.5 lb) container.
Grotek Cal-Max 2-0-0 (23 L)
Q115298
- Nutrient supplement for correcting minor plant deficiencies.
- Rapid nitrogen and magnesium for chlorophyll production.
- Chelated iron supports lush green growth.
- Added calcium improves plant vigour at peak growth.
- Ideal for coconut coir and soilless media.
- Multiple uses: soil, hydroponics, or foliar spray.
- Size: 23 L (6 gal) bottle.
Grotek Monster Bloom 0-50-30 (2.5 kg)
Q115302
- Concentrated bloom enhancer for flowering and ripening stages.
- Provides high levels of phosphorus and potassium.
- Supports protein and starch synthesis in plants.
- Improves sugar and starch movement within plants.
- Mix 6 g per 19 L (1 tsp per 5 gal).
- 500 g makes 5,000 L (1,320 gal) of solution.
- Size: 2.5 kg (5.5 lb) container.
Grotek Monster Bloom 0-50-30 (500 g)
Q115301
- Concentrated bloom enhancer for flowering and ripening stages.
- Provides high levels of phosphorus and potassium.
- Supports protein and starch synthesis in plants.
- Improves sugar and starch movement within plants.
- Mix 6 g per 19 L (1 tsp per 5 gal).
- 500 g makes 5,000 L (1,320 gal) of solution.
- Size:500 g (1.1 lb) container.
Grotek Pro-Silicate 0-0-4 (10 L)
Q115306
- Silica and soluble potash supplement for plant strength.
- Strengthens cell walls and improves stress tolerance.
- Supports drought tolerance and strong plant performance.
- Two potassium sources aid flowering and fruiting.
- Mix 2.5 to 5 mL/4 L (1/2 to 1 tsp/gal) of water.
- 1 L (33.8 fl oz) makes 2,000 L (528 gal) solution.
- Size: 10 L (2.6 gal) bottle.
Grotek Vitamax Plus 1-1-2 (23 L)
Q115308
- Full cycle fertiliser with essential nutrients.
- Improves efficacy of base nutrient programs.
- Supports foliage, flower, root, and stem development.
- Low sediment formula for hydroponic growing.
- Mix 5 - 10 mL/4 L (1 - 2 tsp/gal) as needed.
- 1 L (33.8 fl oz) makes 800 L (211 gal).
- Size: 23 L (6 gal) bottle.
Grotek Cal-Max 2-0-0 (1 L)
Q115310
- Nutrient supplement for correcting minor plant deficiencies.
- Rapid nitrogen and magnesium for chlorophyll production.
- Chelated iron supports lush green growth.
- Added calcium improves plant vigour at peak growth.
- Ideal for coconut coir and soilless media.
- Multiple uses: soil, hydroponics, or foliar spray.
- Size: 1 L (1 qt) bottle.
Grotek Solo-Tek Bloom 3-8-8 (1 L)
Q115309
- One-part bloom fertiliser for flowering and fruiting.
- Optimized ratios for flower and fruit development.
- Enhances nutrient availability and plant vigour.
- High calcium supports strong plant structure.
- Mix 2 - 4 mL/L (1/2 - 1 tsp per 1.25 qt).
- 1 L (33.8 fl oz) makes 500 L (132 gal).
- Size: 1 L (33.8 oz) bottle.
Grotek Cal-Max 2-0-0 (10 L)
Q115311
- Nutrient supplement for correcting minor plant deficiencies.
- Rapid nitrogen and magnesium for chlorophyll production.
- Chelated iron supports lush green growth.
- Added calcium improves plant vigour at peak growth.
- Ideal for coconut coir and soilless media.
- Multiple uses: soil, hydroponics, or foliar spray.
- Size: 10 L (2.6 gal) bottle.
Grotek Cal-Max 2-0-0 (4 L)
Q115312
- Nutrient supplement for correcting minor plant deficiencies.
- Rapid nitrogen and magnesium for chlorophyll production.
- Chelated iron supports lush green growth.
- Added calcium improves plant vigour at peak growth.
- Ideal for coconut coir and soilless media.
- Multiple uses: soil, hydroponics, or foliar spray.
- Size: 4 L (1 gal) bottle.
Grotek Precision Grow 3-1-4 (23 L)
Q115316
- Base nutrient for vegetative growth in 3-part program.
- Provides nitrogen, phosphorus, potassium, magnesium.
- Optimized ratios for heavy feeding crops.
- Supports lush green growth in plants.
- Designed for soilless and hydroponic systems.
- Mix 1 to 3 mL/L (1 to 2.5 tsp/gal).
- 1 L (33.8 fl oz) makes 1,000 L (264 gal).
- Size: 23 L (6 gal) bottle.
Grotek Gro-Silic (23 L)
Q115318
- Concentrated liquid silicon supplement for hydroponic systems.
- Strengthens cell walls to improve plant growth and vigour.
- Helps plants endure abiotic stress like heat and drought.
- Compatible with beneficial biology.
- Apply as foliar spray (1:500) for fastest absorption.
- 1 L (1 qt) makes 6,667 L (1,762 gal).
- Size: 23 L (6 gal) bottle.
Grotek Precision Micro 4-0-2 (23 L)
Q115317
- 3-part base nutrient with micronutrients and calcium.
- Supplies nitrogen, potassium, calcium, micronutrients.
- Optimized ratios for heavy feeding crops.
- Supports plant structure and fruit development.
- Use 1 to 2 mL/L (1 to 1.5 tsp/gal) as required.
- 1 L (33.8 fl oz) makes 1,000 L (264 gal).
- Size: 23 L (6 gal) bottle.
Grotek Monster Bloom 0-50-30 (130 g)
Q115300
- Concentrated bloom enhancer for flowering and ripening stages.
- Provides high levels of phosphorus and potassium.
- Supports protein and starch synthesis in plants.
- Improves sugar and starch movement within plants.
- Mix 6 g per 19 L (1 tsp per 5 gal).
- 500 g makes 5,000 L (1,320 gal) of solution.
- Size: 130 g (4.5 oz) container.
Grotek Monster Bloom 0-50-30 (10 kg)
Q115304
- Concentrated bloom enhancer for flowering and ripening stages.
- Provides high levels of phosphorus and potassium.
- Supports protein and starch synthesis in plants.
- Improves sugar and starch movement within plants.
- Mix 6 g per 19 L (1 tsp per 5 gal).
- 500 g makes 5,000 L (1,320 gal) of solution.
- Size: 10 kg (22 lb) container.
Grotek™ Vitamax™ Pro 2-3-2
P_00856
- Organic-based nutrient with land and sea inputs.
- Encourages lush, green growth and strong roots.
- Contains organic matter for beneficial microbes.
- Supports soil quality and plant resilience.
- Mix 1 mL/L (1/4 tsp per 1.25 qt) weekly.
- 1 L (33.8 fl oz) makes 1,000 L (264 gal).
Grotek™ Blossom Blaster™ 0-48-31
P_00852
- Concentrated nutrient formula for flowering sites.
- Provides abundant nutrients for rapid development.
- Supports prolific blooming and bud filling.
- High phosphorus and potassium levels.
- Mix 1 g per 10 L (1/4 tsp per 2.6 gal).
- 500 g (17.6 oz) makes 5,000 L (1,320 gal).
Grotek™ Cal-Max™ 2-0-0
P_00853
- Nutrient supplement for correcting minor plant deficiencies.
- Rapid nitrogen and magnesium for chlorophyll production.
- Chelated iron supports lush green growth.
- Added calcium improves plant vigour at peak growth.
- Ideal for coconut coir and soilless media.
- Multiple uses: soil, hydroponics, or foliar spray.
Grotek™ Monster Bloom™ 0-50-30
P_00854
- Concentrated bloom enhancer for flowering and ripening stages.
- Provides high levels of phosphorus and potassium.
- Supports protein and starch synthesis in plants.
- Improves sugar and starch movement within plants.
- Mix 6 g per 19 L (1 tsp per 5 gal).
- 500 g makes 5,000 L (1,320 gal) of solution.
Grotek™ Pro-Silicate™ 0-0-4
P_00855
- Silica and soluble potash supplement for plant strength.
- Strengthens cell walls and improves stress tolerance.
- Supports drought tolerance and strong plant performance.
- Two potassium sources aid flowering and fruiting.
- Mix 2.5 to 5 mL/4 L (1/2 to 1 tsp/gal) of water.
- 1 L (33.8 fl oz) makes 2,000 L (528 gal) solution.
Grotek Pro-Silicate 0-0-4 (4 L)
Q115305
- Silica and soluble potash supplement for plant strength.
- Strengthens cell walls and improves stress tolerance.
- Supports drought tolerance and strong plant performance.
- Two potassium sources aid flowering and fruiting.
- Mix 2.5 to 5 mL/4 L (1/2 to 1 tsp/gal) of water.
- 1 L (33.8 fl oz) makes 2,000 L (528 gal) solution.
- Size: 4 L (1 gal) bottle.
Grotek Pro-Silicate 0-0-4 (23 L)
Q115307
- Silica and soluble potash supplement for plant strength.
- Strengthens cell walls and improves stress tolerance.
- Supports drought tolerance and strong plant performance.
- Two potassium sources aid flowering and fruiting.
- Mix 2.5 to 5 mL/4 L (1/2 to 1 tsp/gal) of water.
- 1 L (33.8 fl oz) makes 2,000 L (528 gal) solution.
- Size: 23 L (6 gal) bottle.
Grotek Monster Bloom 0-50-30 (5 kg)
Q115303
- Concentrated bloom enhancer for flowering and ripening stages.
- Provides high levels of phosphorus and potassium.
- Supports protein and starch synthesis in plants.
- Improves sugar and starch movement within plants.
- Mix 6 g per 19 L (1 tsp per 5 gal).
- 500 g makes 5,000 L (1,320 gal) of solution.
- Size: 5 kg (11 lb) container.