Description
Bloombastic is Atami’s flagship phosphorus and potassium bloom booster — a highly concentrated, sugar-rich flowering enhancer that is among the most potent PK bloom stimulants available to UK growers. Bloombastic is formulated around a high-brix (high-sugar) base of naturally derived sugars combined with elevated phosphorus and potassium concentrations, creating a product that simultaneously feeds the intense energy demands of peak flowering metabolism while providing the mineral building blocks that flower weight and quality development require.
The Bloombastic Approach to Peak Flowering
Atami has built Bloombastic around the concept of maximum metabolic support during the final phase of flowering — the period between week four and harvest when bud size, weight, and quality are determined. The high sugar content of Bloombastic provides direct carbon nutrition to the flowering plant at a time when the demand for carbohydrates to fuel bud development exceeds what photosynthesis alone can supply in many growing conditions. Feeding soluble sugars bypasses the energy cost of photosynthetic carbohydrate production, making more of the plant’s metabolic capacity available for the complex biochemistry of terpene synthesis, resin production, and the accumulation of the secondary compounds that determine final product quality. The phosphorus and potassium concentrations complement this sugar nutrition by providing the mineral cofactors for the enzyme systems and cellular processes involved in flower and fruit development. Together, the sugar base and elevated PK profile create a bloom-phase nutritional environment that Atami’s field data shows can significantly enhance final yield and quality compared to standard bloom nutrition alone. At The Horticulture Company, Bloombastic has been consistently popular with growers seeking the best possible flowering results, and the customer feedback on results has been consistently positive.
Dosage and Timing
Use Bloombastic at 0.5–1ml per litre from week three of flowering through to the final flush week. It is very concentrated — do not exceed the recommended dosage. Always check combined EC when using Bloombastic alongside a base nutrient. Compatible with all growing media and most nutrient brands.


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