BLOOM Massive Flowering Booster - Hydropassion


MASSIVE BLOOM is a superior quality stimulating and flowering accelerator fertilizer, resulting from scientific research and laboratory tests, offering the amateur and professional gardener a product of great effectiveness.

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The formulation of MASSIVE BLOOM is a clever blend of high quality, extra purified and highly assimilable major P / K elements, which we have associated with a combination of natural trace elements of marine origin, bio stimulants and many vitamins.

An exclusive formulation.

Designed to increase crop yield and quality, this new generation fertilizer provides plants with additional energy and vitality for massive flower and fruit development. MASSIVE BLOOM optimizes flowering, while being very easy to use in conjunction with a balanced nutrient program. MASSIVE BLOOM is a product formulated to obtain exceptional flowering.

  • EC fertilizer PK 50-33
  • Contains an extract of Spirulina (natural vitamins) and L-ascorbic (Vitamin C).
  • Contains seawater extract for a supply of natural trace elements.
  • Improves flowering, increases yield and quality of crops.
  • Improves the flavor of condiment, vegetable, aromatic and medicinal plants.
  • Powder to be diluted, perfect solubility.
  • Easy to prepare and economical (0.3 gr / L).

Massive bloom contains:

  • Highly assimilable phosphorus and potassium (PK).
  • A seawater extract for a supply of precious minerals, trace elements and trace elements. It is a tonic and revitalizing nutritional supplement made from seawater rich in magnesium (2300 mg / l). The many mineral salts and trace elements that go into its composition make this seawater plasma a particularly revitalizing hypertonic product. Mainly contains magnesium, calcium, sulfur, potassium, fluorine, phosphorus, iodine, sodium.
  • An extract of Spirulina, an algae well known for its bio stimulating and antioxidant properties and as an excellent source of vitamins (A, E, D, B1, B2, B3, B6, B7, B8, B12, K), beta carotene and minerals and trace elements such as calcium, phosphorus, potassium, magnesium, iron, zinc, copper, manganese, chromium, sodium, and selenium. Rich in powerful antioxidant phycocyanin, chlorophyll, and enzymes, the most important of which is superoxide dismutase (SOD) which contains iron.
  • L-ascorbic acid (Vitamin C) which is very beneficial for plants. A vital coenzyme in degradation reactions, which prevents the accumulation of unwanted compounds. providing a bad taste. Vitamin C is the main element responsible for the change in flavor and aroma.

Use of massive bloom.

MASSIVE BLOOM provides all the elements necessary for a strong activation of the flowering process, it acts as an initiator of the process of enlargement and maturation of the fruit, the flowers, because it encourages growth and cell division. MASSIVE BLOOM is very easy to use and very economical to use: A box of 100 gr is sufficient to prepare more than 300 liters of nutrient solution! Use from the 3rd week of flowering, once a week, until the end of flowering, stop one week before harvest. To be used in addition to your usual fertilizer.

Hydroponics, aeroponics:

1 intake / week maximum. And each time the tank is filled. 0.3 gr / liter of water. Or 3 gr for 10 Liters. Use in addition to your usual nutritional program. Stop a week before harvest.

Cultivation in soil:

1 intake / week maximum. 0.3 gr / liter of water. Or 3 gr for 10 Liters. Use in addition to your usual nutritional program. Stop a week before harvest.

Flowering stimulator fertilizer.

  • pentoxide (P2O5) soluble in water.
  • 33% potassium oxide (K20) soluble in water.
  • Spirulina extract.
  • L-ascorbic acid (Vitamin C).
  • Sea water extract.


Flowering Stimulator

NPK : 0-50-33

Manufactured and packaged in France in our factory in Finistère (Brittany), Master Grower products are made from original formulations developed by Hydropassion.

When will my order be shipped?

You place your order between:

midnight - 2pmShipped the same dayShipped on Monday
2pm - midnightShipped the next dayShipped on Monday

Which countries do you deliver to?

You can place an order on the website for delivery to the following countries: Germany, Austria, Belgium, Canada, Denmark, Spain, France, Finland, Greece, Guadeloupe, French Guiana, Italy, Ireland, Luxembourg, Martinique, New Caledonia, New Zealand, Netherlands, Portugal, Reunion, United Kingdom, Sweden, and Switzerland.

The countries listed below benefit from FREE international Express delivery by Chronopost for orders over 100€!

Germany, Austria, Belgium, Spain, Denmark, Finland, Greece, Italy, Ireland, Luxembourg, Netherlands, Portugal, United Kingdom, Sweden.

If you do not find your country, feel free to contact us and we will inform you about the possibility of delivery.

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Is your country not on this list? Contact us by email for a custom quote.