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PK Boosters

Buddhas Tree PK 9-18

Buddhas Tree is currently the only PK 9-18 soluble solution available on the market.
From £24.95

Mills Ultimate PK Booster

Ultimate PK is ideal for the later stages of flowering, as it is Phosphite-based and therefore increases oxygen flow to the root. The Phosphite is readily soluble and this helps to stimulate root growth as well as harden cell structure.
From £18.95

Plant Magic Oldtimer Organic PK4-8

Plant Magic oldtimer Organic PK 4-8 is a flowering booster with a NPK of 2-4-8 designed to boost and enhance blooms. During they flowering stage plants need a range of stimulants and boosting agents to deliver those heavier yields
From £15.95

Big Bud (Advanced Nutrients)

Advanced Nutrient's Big Bud is essentially a mild, early PK with added amino acids.
From £9.95

Big Bud Coco (Advanced Nutrients)

Advanced Nutrient's Big Bud Coco is essentially a mild, early PK with added amino acids. Its NPK ratio of 0-1-3 means that it can be added earlier (than say PK 13/14) giving your plants and early flowering boost. This results in fruits and flowers being larger, more potent and increases the size of your yield. Big Bud is available in 1L.
From £29.95

Canna PK13/14

PK 13/14 is a top quality booster from Canna that will guarantee excellent results.
From £4.95

Hesi PK13/14

Hesi PK 13/14 gives your plants the extra Phosphorus and Potassium which is needed in the flowering phase.
From £13.95

Overdrive (Advanced Nutrients)

Overdrive is a late flowering booster which helps to stimulate increased flower production right before your harvest.
From £9.95

Plant Magic Platinum Pk 9-18

Plant Magic Platinum Premium PK 9-18 is a flowering booster with a highly complex PK designed to boost and enhance blooms. During they flowering stage plants need a range of stimulants and boosting agents to deliver those heavier yields. Plant Magic Platinum offers enriched bio-stimulants
From £16.95

Snoop's Premium Nutrients Heavy Harvest

Snoops Heavy Harvest is bloom stimulating booster. Plants work hardest during the bloom phase. They need much higher levels of phosphates (P) and potassium (K) in order to produce flowers.
From £21.95

Vitalink PK13/14

Vitalink PK13/14 is a flowering booster containing essential macro nutrients- predominantly Phosphorus and Potassium which enhance fruit development.
From £4.95

Overview

PK boosters are nutrient supplements for flowering plants that are specifically designed to be used during middle and late stages of flowering periods. ... A PK booster simulates a natural chemical change inside a plant, particularly in the ends of the stems where flowers and fruits develop.