Grotek Monster Bloom
Grotek Monster Bloom
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Order by 3pm Mon–Thu for next-working-day delivery · FREE delivery over £50 · Free Wembley pickup
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Description
Drive bigger, denser flower clusters through the bloom stage
Grotek Monster Bloom is a highly concentrated bloom booster built for the flowering stage, when a plant's demand for phosphorus and potassium rises sharply. Its 0-50-30 NPK analysis, backed by added magnesium and sulphur, fuels rapid floral development, stronger metabolism and better nutrient uptake for healthier flowering plants in a grow tent or grow room. It performs across hydroponics, coco and soil.
Key Benefits
- Concentrated 0-50-30 PK meets peak flowering demand for larger, denser flower clusters
- Magnesium improves carbohydrate metabolism and plant energy production
- Sulphur supports enzyme production, plant proteins, flavour and essential oil development
- Stronger stems and stalks from improved protein and starch synthesis to carry heavier flowers
- Better ripening and flower quality for improved overall yield
- Suitable for hydroponic systems, coco and soil growing
Ending up with airy buds and light yields?
Without enough phosphorus and potassium through bloom, plants lack the raw materials to build dense buds, so growers see slow bud development, airy flowers and reduced yields. Monster Bloom supplies concentrated bloom nutrients that accelerate floral growth and stiffen plant structure, delivering denser buds and better quality at harvest.
How to Use
- Begin when buds first form at the start of flowering.
- Mix at 0.1-0.2g per litre of nutrient solution.
- Add to your reservoir or feed solution alongside your regular base nutrients.
- Apply during normal feeding through the mid-flowering period.
- Continue until 1-2 weeks before harvest, then stop.
- Do not combine with other PK bloom boosters, to avoid nutrient burn.
Technical Specifications
- Type: Concentrated soluble bloom booster
- NPK: 0-50-30
- Added elements: Magnesium and sulphur
- Dose rate: 0.1-0.2g per litre
- Suitable media: Hydroponics, coco and soil
- Use window: Start of flowering until 1-2 weeks before harvest

Free next-day delivery on orders over £50 (order by 3pm Mon–Thu). Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.

