Monster Bloom

Monster Bloom
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Grotek Monster Bloom is a specially formulated bloom booster with a great reputation among growers for the explosive surge it gives to cannabis plants during the middle stages of the flowering period, leading to bigger and better harvests.

Its high concentration of phosphorus stimulates growth, helps to maintain roots, encourages flowering and plays a key role in plant metabolism.

The inclusion of potassium helps to improve the quality of flowers, optimises photosynthesis, assists the generation of starches within the plant and encourages ripening. It also contains a natural plant-based ingredient which helps boost the general bloom potential of your cannabis plants.

Due to its high and powerful concentration, Monster Bloom should not be used during the last two weeks of flowering to allow full assimilation of the nutrients by the plant, resulting in a smoother-tasting, more richly-flavoured end product.

For the best yields we recommend using a combination of Grotek Monster Bloom and Grotek Heavy Bloom during flowering.

Important: Monster Bloom is highly concentrated, so it is advisable to follow the manufacturers recommended dosage.


  • 50% Phosphorus
  • 30% Potassium
  • 20% Not Specified


  • 0.3 g per 1l of water, begin use when the buds start forming, apply in every irrigation until two weeks before harvest.

Monster Bloom related products (Grotek)

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Grotek Monster Grow

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BIO BIZZ Bio Bloom

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Blossom Blaster

Blossom Blaster

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TRABE Oleatbio - Potassium Soap

Opinions about Monster Bloom and questions


ID-81102 Stiliyan Veselinov Has bought this article 06-04-2019
I want to buy monster bloom but as i see in your site the picture of product is not like in original site grotek. Why is that is it authentic?

Alchimia Staff

Alchimia Grow Shop 08-04-2019

Hi, manufacturers often change the packaging of their products, it can be specific to each different markets depending on the country/continent, or spontaneously changed in some cases, but it is indeed the true Grotek's Monster Bloom ;-) Cordially

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