Best Organic Fertilizer for Cannabis 2025: HomeGrowTV Tests Cronk Nutrients PuurOrganicsUpdated 3 days ago
HomeGrowTV returns to Cronk Nutrients, testing the new PuurOrganics organic fertilizer line for cannabis, plants, and greenhouse grows.
In early 2025, HomeGrowTV shocked its community by announcing:
“Cronk Nutrients is officially back in the garden.”
After experimenting with multiple nutrient brands, the team decided to return to Cronk — this time to test our brand-new PuurOrganics line.
This organic fertilizer system was developed to offer the same reliability and yield potential as Cronk’s salt-based nutrients, while delivering the clean, living-soil quality that organic growers love.
Now, six months later, PuurOrganics is officially available, and HomeGrowTV’s grow results show why it’s quickly being called one of the best organic fertilizers for cannabis in 2025.
Why HomeGrowTV Switched Back to Cronk Nutrients
From Mineral Salts to Organics, and Back to Trust
HomeGrowTV has used Cronk before — our Classic 3-Part Grow–Micro–Bloom fertilizer helped produce several of their most successful harvests.
But when their audience began asking for organically grown flower with richer terpene profiles, they reached out to Cronk again.
“The owner of Cronk called me and said they were launching an organic nutrient line — and I’d love for you to test it,” HomeGrowTV shared.
“We’ve always loved Cronk. Cost per bottle, consistency, results — it’s one of the most efficient and affordable nutrients we’ve ever used.”
Introducing PuurOrganics — Cronk’s New Organic Fertilizer for Cannabis and Plants
Clean, Plant-Based Nutrients for Soil and Coco Growers
PuurOrganics is a liquid organic nutrient system made from plant-based inputs and designed for soil, coco, and greenhouse cultivation.
It breaks the traditional “all-in-one” mold by offering separate, precision-balanced bottles that feed plants naturally — without synthetic salts or pH swings.
What’s in the PuurOrganics system:
🌿 Organic Nitrogen Formula (PuurNitro) – Supports lush leaf and stem development.
🌸 Organic Phosphorus & Potassium (PuurPhos & PuurK) – Fuels flowering and essential oil production.
💧 Organic CalMag (PuurCalMag) – Balances minerals for strong cell walls and nutrient transport.
🌎 Organic Micro & Macro Nutrient (PuurBalance) – Provides carbon-rich building blocks for microbial life.
“It’s separated into nitrogen, phosphorus, and potassium — as well as an organic CalMag and base nutrient,” says HomeGrowTV.
“Everything in the CO₂ room is now running the new organic line, and it’s crushing it.”
What Makes PuurOrganics the Best Organic Fertilizer for Cannabis in 2025
Balanced Science Meets Sustainable Growing
Whether you’re growing cannabis, fruits, or vegetables, PuurOrganics offers the best of both worlds — scientific precision with organic integrity.
This makes it one of the best organic nutrients for plants across all grow types.
Key Advantages:
✅ 100% Plant-Based Ingredients: No animal byproducts or synthetic fillers.
✅ Enhanced Soil Biology: Encourages beneficial microbes and root health.
✅ pH Stable in Organic Systems: Rare stability for a liquid organic feed.
✅ CO₂ & LED Friendly: Designed to handle high-performance environments.
✅ Fast Response, Clean Feeding: Works without clogging drip or AutoPot systems.
Unlike many “thick” organic fertilizers, PuurOrganics mixes cleanly and stays active in solution — ideal for growers running hybrid organic-hydro systems.
HomeGrowTV’s Grow Results with PuurOrganics
Vigorous Growth, Deep Color, and Rich Aroma
HomeGrowTV’s greenhouse and CO₂ grow tested the full PuurOrganics program side-by-side with Cronk’s Classic salts.
| Grow Area | Nutrient Line | Medium | Results |
|---|---|---|---|
| CO₂ Indoor / Greenhouse | PuurOrganics | Coco & soil mix | Vigorous growth, darker leaves, early resin, strong terpene output |
| Tents (automated drip) | Classic Salts (Grow–Micro–Bloom) | Coco | Rapid recovery from VPD stress, precise EC steering, consistent yields |
“Everything running on the new PuurOrganics line is thriving,” said Dakota.
“The plants in the CO₂ room are the healthiest we’ve ever seen. The Classic salts are still solid in the tents — it’s the perfect balance.”
When to Choose Organic vs Mineral Nutrients
| Grow Style | Recommended Line | Why |
|---|---|---|
| Soil or Greenhouse (living environment) | PuurOrganics | Enhances microbial life, natural flavors, and terpene intensity. |
| Automated Coco / Hydroponic Setup | Cronk Classic Line (Salts) | Provides precise EC control, fast feeding, and clean irrigation. |
| Hybrid Grow (CO₂, auto systems, organic goals) | Combine Both | Run PuurOrganics in main beds; Classic salts for cloning or correction. |
💡 Pro Tip:
If you grow outdoors or in soil, PuurOrganics delivers that earthy, full-bodied flavor profile that many synthetic lines can’t match — without sacrificing yield.
Why Organic Cannabis Nutrients Matter More Than Ever
As legalization and sustainability move forward, organic fertilizer for cannabis is becoming the gold standard.
Growers are looking for clean-label nutrient systems that boost yield and quality without harming the environment.
Benefits of organic growing include:
Better soil structure and water retention
Improved flavor and aroma expression
Lower salt buildup and pH fluctuation
Healthier roots and microbial diversity
Cleaner runoff and eco-friendly waste profile
PuurOrganics is built for this new generation of conscious growers — combining scientific precision with natural performance.
Quick Guide — How to Feed with PuurOrganics
Start with Base (PuurBalance + PuurCalMag) during mixing.
Add Nitrogen, Phosphorus & Potassium next.
Maintain consistent moisture — organic nutrients rely on active microbes. Adding a beneficial bacteria like Monkey Juice will help.
Avoid overfeeding; organics build compounding strength naturally.
💧 Feeding Frequency: 1-2 times per week in soil, daily light feed in coco systems.
🌱 pH Range: 6.2–6.8 ideal for organic uptake.
HomeGrowTV’s Takeaway — Organic Power, Cronk Consistency
“We’ve tested a lot of nutrient brands, but Cronk’s new organic line hits different. It’s clean, consistent, and the cost-per-feed makes sense.
The Classic line gave us speed; PuurOrganics gives us quality.”
Watch the Full Episode
🎥 Watch HomeGrowTV’s Full PuurOrganics Test on YouTube
Related Articles
Still Need Help?
Still need help? Contact our grow support team at [email protected]