Shop All

Grow Base Fertilizer Cronk Nutrients' Grow is an essential component of our 3-part base nutrient system. With a nutrient ratio of 2-1-6, Grow provides the essential macro and micronutrients your plants...

PuurGrow Kit – Complete 5-Part Organic Nutrient System The PuurGrow Kit includes all five products from our PuurOrganics line—a complete, plant-first feeding system designed for growers who want full control and...

PRO-MIX® CONNECT™ is the mycorrhizal inoculant with the highest concentration of viable spores. This root enhancer ensures a rapid connection with the roots of your clones and seedlings. • Wettable...

Measure out the perfect dose with our 30mL Dose Cup. No more guessing, no more waste. Ensure precise nutrient intake for maximum benefits. Get the most out of your nutrients...

Organic Potassium Supplement (0-0-15) Stack weight. Ripen right. Strengthen from the inside out. PuurK is a highly concentrated organic potassium formula designed to give your plants the late-stage support they...

Enhance Your Growing Experience with the PRO-MIX® HP Open Top Grow Bag Welcome to the next level of gardening with the PRO-MIX HP Open Top Grow Bag, your ideal companion for...

Organic Phosphorus Supplement (0-12-0) Fuel flowers. Strengthen roots. Grow clean. PuurPhos delivers clean, plant-available phosphorus to drive early plant structure, root development, and explosive flowering. Whether you’re building strong starts...

Boost your gardening experience with the Pro-Mix® CX Biostimulant Coir-Based Grow Bag, now available on Cronk Nutrients. This ready-to-use grow bag, featuring a blend of chunk coir and coir pith,...

Organic Nitrogen Supplement (8-0-0) Vibrant greens. Explosive growth. Clean, sustainable power. PuurNitro is your go-to organic nitrogen source for driving strong vegetative growth, lush canopy development, and vibrant plant color....

Organic Calcium + Magnesium Supplement Build structure. Prevent deficiencies. Grow strong from the roots up. PuurCalMag is your plant’s structural support system. It corrects and prevents two of the most...

Each pack of Integra Boost® Terpene Essentials contains our patented salt-free, plant-based 2-way humidity control formula and our botanically sourced terpene isolates. All of our terpenes are tested, standardized in...

Each pack of Integra Boost® Terpene Essentials contains our patented salt-free, plant-based 2-way humidity control formula and our botanically sourced terpene isolates. All of our terpenes are tested, standardized in...