Drip PK-Booster 5 Gallon bloom nutrients It leaves no harmful residues

It leaves no harmful residues on fruits

and synergistic inerts for superior bioactivity

Feeding hydroponic and aeroponic systems where water quality directly impacts nutrient uptake and root health

Humboldt Nutrients offers the ease of a one-part Ca-Mg additive with the quality which has come to be associated with our products

intuitive user experience

Drip PK-Booster 5 Gallon bloom nutrients It leaves no harmful residuesHighly concentrated Phosphorus and Potassium boosting supplement. Designed to be used throughout the flowering stage of any fruit or flower producing plants. Also contains chelated Manganese and chelated Zinc. Dilution: 1 3 mL (0. 03 0. 10 fl. oz) per 4 L (1 gallon) of water through Weeks 1 8 of any fruit or flower producing plants. Developed as a PK Booster, Flex is rich in highly bio available Phosphorus and Potassium, providing your plants with the