PuurK Organic Potassium Supplement (0-0-15)

Stack weight. Ripen right. Strengthen from the inside out.

PuurK is a highly concentrated organic potassium supplement designed to support plants during their most demanding phase—late-stage bloom and ripening. From increasing flower density to improving stress resistance and finish quality, potassium plays a critical role in final development, and PuurK delivers it cleanly, precisely, and sustainably.

Formulated for purity and performance, PuurK is a fully soluble, sediment-free liquid potassium source that’s safe for soil, coco, hydroponics, drip irrigation, and foliar applications. It’s the efficient way to push bloom weight, enhance ripening, and fortify plants against environmental stress—without excess salts or residue.

Sustainability That Stacks Up

PuurK is crafted with an eco-conscious approach, using renewable plant-based sources instead of mined potassium salts or synthetic inputs.

• Derived from renewable plant matter
• Clean, fast-acting, and earth-friendly
• No harsh salts or excess residue
• Built for regenerative and living-soil systems

Why Growers Love PuurK

• Increases flower density and weight during bloom
• Supports ripening, sugar production, and color development
• Enhances plant strength and resistance to heat, drought, and stress
• Clean, sediment-free formula won’t clog lines or filters
• Organic and eco-conscious – no mined inputs or synthetics

PuurK gives growers the freedom to elevate potassium levels exactly when plants need it most—without filler nutrients or unnecessary additives.

Part of the Complete PuurOrganic Feed Program

PuurK is designed to work synergistically within the Cronk Nutrients PuurOrganic Feed Program. For best results, use alongside:

• PuurNitro – for strong vegetative growth
• PuurPhos – for flower initiation and root strength
• PuurBalance – for critical micronutrients and uptake efficiency
• PuurCalMag – to reinforce structure and prevent deficiencies

Together, these products allow growers to fully control N-P-K ratios, maximize nutrient availability, and simplify feeding programs—without sacrificing performance.

Stack weight. Push bloom. Finish clean.
Only with PuurK by Cronk Nutrients.