Grotek - Monster Bloom


Size: 500g
Sale price£32.99

Grotek's Classic Bloom Enhancer

Monster Bloom is a worldwide industry standard and a top selling bloom enhancer for a reason. It is packed full of essential nutrients that all plants crave as they strive to maximise yield. This formula provides a powerful punch to plants, moving from floral initiation to developing the largest flowers and fruit possible. Begin application when buds are forming and continue to use with every fertiliser application during the blooming cycle. Discontinue use 1-2 weeks before harvest of crops. We recommend to discontinue use of any other PK products that were previously used in your bloom cycle. Using both Grotek Monster Bloom and any other PK product may cause nutrient burn.

How Grotek Monster Bloom Works:

Monster Bloom provides a specific ratio of nutrients that impact plant growth by activating enzyme activity, accelerating protein and starch synthesis, as well as increasing stalk and stem strength. Monster Bloom also helps regulate respiration, which in turn will help increase CO2 uptake. The added Magnesium improves flower quality through rapid metabolism of carbohydrates to drive plant function. Sulphur forms important enzymes and assists in the formation of plant proteins and some vitamins. It is key to adding flavour and essential oils. The Monster Bloom formula also contains added vitamins to help plants through periods of rapid development.



Your choice of size of Grotek - Monster Bloom (choose your size above)


  • Helps ripen crops
  • Improves harvest yeild
  • Accelerates protein and starch synthesis
  • Increases stalk and stem strength
  • Boosts the movement of sugars and starches within the plant
  • Regulates respiration and assists with CO2 uptake, resulting in larger flower clusters
  • Derived from Monopotassium Phosphate
  • Available in either 500g or 2.5kg

How To Use

How To Use Grotek Monster Bloom:

Begin application when buds are forming and continue use with every fertilizer application during the blooming cycle at a rate of 0.1g per litre of nutrient solution. Discontinue use 1-2 weeks before harvest of crops. No other PK products need to be used in conjunction with Grotek Monster Bloom, using a seperate PK may lead to nutrient burn.

Each 500g tub contains enough Monster Bloom powder to treat 5000 litres of nutrient solution.

Each 2.5kg tub contains enough Monster Bloom powder to treat 25000 litres of nutrient solution.

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