Grenade
Grenade: a concentrated PK booster for the flowering weeks, adding the phosphorus and potassium a base feed can't supply on its own.
In StockGrenade
£63.00
About Grenade
Using it
A short window in mid to late flowering, alongside a reduced base feed, following the label. PK products pull the pH down, so check after adding.
Related
The rest of the range, from PK 13/14 to PK 9/18, is under PK Boosters.