Buddhas Tree Nutrients

Buddha’s Tree is a UK-developed specialist nutrient brand focusing predominantly on bloom enhancement — with their flagship PK 9-18 bloom booster and Flower Burst products achieving a devoted following among UK growers who have experienced their effectiveness first-hand. Buddha’s Tree takes a targeted approach, producing highly refined products for specific stages of the flowering cycle rather than attempting to be an all-in-one brand.
Buddha’s Tree PK 9-18
PK 9-18 is Buddha’s Tree’s most popular product and the one that established their reputation. Containing a highly concentrated phosphorus and potassium input in a 9:18 ratio, it is applied from weeks 3–6 of flowering to drive dramatic increases in flower density and structural weight. The high potassium-to-phosphorus ratio distinguishes PK 9-18 from standard 13-14 PK boosters and reflects the specific nutrient demands of heavy-yielding indoor plants during peak flower development.
Use PK 9-18 at 0.25–0.5ml per litre during the application window, starting low and adjusting based on plant response. It stacks well with most base nutrient ranges — just monitor your overall EC and reduce base nutrient if combining with other boosters.
Buddha’s Tree Flower Burst
Flower Burst is a flowering trigger and early bloom stimulator designed for use at the point of switching from 18/6 to 12/12 photoperiod. It provides a targeted nutrient input that encourages rapid flower site initiation and a compact, even stretch during the first two weeks of bloom. Used alongside PK 9-18 in the mid-flowering phase and a quality bloom base nutrient, Buddha’s Tree products form an effective bloom optimisation programme for UK growers.
We have been recommending Buddha’s Tree to UK growers since 2017. Browse the full range below.