Cronk Nutrients PuurK

PuurK is specifically formulated for the late-stage flowering and ripening phases. You should introduce it once your plants have transitioned into full bloom to support peak flower density and resin production.

No, PuurK is designed to be fully soluble. It is safe to use in recirculating systems, drip irrigation, and AutoPot setups without the risk of clogging or residue buildup.

Yes, it is designed to integrate into almost any multi-part feeding program. Since it is a 0-0-15 potassium supplement, it acts as a booster that you can add to your base nutrients without disrupting your current nitrogen or phosphorus levels.

Yes, PuurK is OMRI-listed for organic production. It is unique because it is derived from upcycled durian shells, providing a plant-based source of potassium rather than mined potash or synthetic salts.

Like most liquid fertilizers, adding PuurK may slightly shift the pH of your water. We recommend adding it to your reservoir first, mixing thoroughly, and then adjusting your pH to your target range before feeding.

Absolutely. Because it is OMRI-listed and derived from plant matter, it is an excellent choice for living soil and organic growing mediums where you want to avoid synthetic inputs.