Grenade Black really is a handful, an enhanced PK additive designed to set off explosive bloom phases and maintain plant energy levels through to harvest. Employing advanced organo-mineral formulation the Grenade stimulates photosynthetic development and gets water and nutrient transit right up to speed, increasing plant energy levels.

The powerful potassium content helps ensure that sugar and starch production are properly regulated. Optimised sulphur works quickly to enhance secondary metabolite production, and a supplementary nitrogen component sustains growth.

Deep within the Grenade are the cleverly arranged amino acids, cytokinins, gibberellins, polysaccharides, betaines, auxins, proteins, enzymes, carbohydrates, and trace minerals that help ripen and bulk your crop, but never at the expense of quality. Ultra concentrated for exceptional value, the Grenade is designed to be deployed at 0.2ml – 0.4ml during weeks 5, 6, and 7 of the flowering cycle.

• Maintains plant processes and healthy progress whilst developing huge harvests
• Increases plant energy levels
• Stimulates photosynthesis and nutrient transit
• Includes optimised sulphur component for secondary metabolite production
• Ripens and bulks without compromising quality
• Ultra-concentrated for great value

Order and pay online before 1pm for free, same-day, in-store collection (Mon to Sat).

Order and pay online after 1pm, or on a Sunday, or on a Bank Holiday for free, next-day, in-store collection.

* Please await your ‘Order Ready’ email before setting out to collect your order. *

On orders over £99 we offer free standard U.K. delivery* within 1-3 days of your order being placed.

Your goods will be transported securely, discreetly, and with tracking to ensure you have the best possible idea of when they’ll be delivered.

*exclusions and surcharges may apply, please see full Delivery Information for details.