Cronk PuurNitro 8-0-0 | Organic Nitrogen Plant Fertilizer
500mL
$21.88
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Cronk PuurNitro 8-0-0 | Organic Nitrogen Plant Fertilizer
$21.88
NPK Ratio:
8-0-0
Product Line
PuurOrganic Line
Application Stage
Vegetative
Growing Medium
Soil, Coco, Living Soil
Certification
OMRI Listed
Product Overview
PuurNitro 8-0-0 is an OMRI-certified organic nitrogen fertilizer sourced from upcycled soy protein. The high-nitrogen formula fuels rapid vegetative growth, strong leaf production, and vibrant green coloration while maintaining full organic compliance. Unlike slow-release organic nitrogen sources, PuurNitro delivers immediately available nitrogen that plants absorb within hours.
Organic growers often struggle with nitrogen timing—traditional sources require weeks of microbial breakdown before plants access nutrients. PuurNitro solves this with biologically processed nitrogen that provides synthetic-like response times while remaining 100% organic.
Key Benefits
- 8% nitrogen from plant-based sources delivers fast vegetative response
- Fully soluble formula works in hydroponics, coco, and soil without sediment or clogging
- Upcycled soy meal reduces agricultural waste while creating high-performance fertilizer
- OMRI Listed for certified organic production
Ideal For
Organic growers using the PuurOrganics 5-part system who need precise nitrogen control at each growth stage. Increase during vegetative growth, reduce during flowering transition.
Best Results In
Soil, living soil, and coco coir. While fully soluble and technically hydro-compatible, organic nutrients in DWC/RDWC require more attention to reservoir management and pH stability. New hydro growers should consider the Classic 3-Part system.
What's Inside
Guaranteed Analysis: 8-0-0
| Total Nitrogen (N) | 8.0% |
Derived From:
Vegetable Protein Hydrolysate
How To Use
PuurNitro 8-0-0
Part of the 5-Part PuurOrganic system. Provides clean, plant-based nitrogen from upcycled soy meal for explosive vegetative growth. All 5 PuurOrganic products (PuurNitro, PuurPhos, PuurK, PuurCalMag, PuurBalance) are recommended to be used together for best results. Frequency: Feed 1-2 times per week in soil. In coco, feed with every watering.
- Mix in room temperature water (65-72°F / 18-22°C)
- If using Armadillo Armour, add it first before PuurNitro
- PuurOrganic Mixing Order: PuurNitro (1st) → PuurPhos → PuurK → PuurCalMag → PuurBalance
- Frequency: In soil, feed 1-2 times per week. In coco, feed with every watering.
- Peak dosage during late veg and early flower, then gradually taper through flowering
- Essential for lush green growth and strong structural development
- For specific dosages and week-by-week schedule, see Feed Schedules section
💡 PuurOrganic Mixing: Armadillo (if using) → PuurNitro (1st) → PuurPhos → PuurK → PuurCalMag → PuurBalance → Additives → Monkey Juice (LAST)
Best Results In
Soil, living soil, and coco coir. While fully soluble and technically hydro-compatible, organic nutrients in DWC/RDWC require more attention to reservoir management and pH stability. New hydro growers should consider the Classic 3-Part system.
Basic Mixing Instructions
- Start with room temperature water (65-72°F / 18-22°C)
- If using Armadillo Armour, add it FIRST
- Add base nutrients in proper order and mix thoroughly
- Add CalMag after base nutrients (if applicable)
- Add other additives, with Monkey Juice LAST
- Check pH (5.6-6.4 depending on stage and medium)
- Apply to plants - water until 10-20% runoff
Customer Reviews
Feed Schedules & Dosage
PuurNitro 8-0-0 Feed Schedule
Detailed week-by-week feed schedule available. Part of the 5-Part PuurOrganic system.
Use with PuurPhos, PuurK, PuurCalMag, and PuurBalance for complete organic nutrition.
Compatibility
Compatible Plant Types
Hemp
Vegetables
Fruits
Flowers
Houseplants
High-Value Crops
Compatible Growing Mediums
Soil
Coco Coir
Hydroponics
Living Soil
Soilless Mixes
Compatible Irrigation Styles
Hand Watering
Drip Systems
AutoPot Systems
Bottom Feed *
Recirculating Systems
Fertigation
* Bottom Feed Notice: PuurOrganic nutrients may create a biofilm buildup in bottom-feed reservoirs. Regular cleaning is recommended when using bottom-feed systems.
General Mixing Tips
- Use room temperature water (65-72°F / 18-22°C)
- Mix each nutrient thoroughly before adding the next
- Never mix concentrated nutrients together
- Check and adjust pH after all nutrients are mixed
- Store nutrients in cool, dark place away from direct sunlight
Frequently Asked Questions
What is PuurNitro and what does it do?
A clean, fully soluble organic nitrogen made from upcycled soy protein that fuels rapid vegetative growth, strong leaf production, and vibrant green colour.
When should I use PuurNitro?
Use through veg for canopy build and anytime you need to correct N deficiency or green up pale leaves; it’s designed to correct quickly without overfeeding when used as directed.
What’s the correct mixing order with the PuurOrganics program?
(If using) Armadillo Armour → PuurNitro → PuurPhos → PuurK → PuurCalMag → PuurBalance → pH last. Add carbs after bases and microbes last.
Is PuurNitro safe for coco, hydro, drip, and foliar?
Yes—sediment-free and system-safe for soil, coco/soilless, DWC, drip/automated, and foliar applications.
Can I run PuurNitro with other base nutrients?
It’s a core part of the PuurOrganics stack and works best alongside PuurPhos, PuurK, PuurCalMag, and PuurBalance. If supplementing other bases, start modest and monitor EC and plant response; pH last.
Is PuurNitro safe for seedlings and clones?
Yes—wait until roots are established, then start at ¼ strength and increase only if new growth stays pale.
How quickly will leaves green up after feeding?
Many plants show visible improvement within 24–72 hours; new growth responds first.
Does PuurNitro replace my base nitrogen?
In the PuurOrganics program it’s the primary N source; when used with other bases, treat it as a supplement and watch EC to avoid overfeeding.
Complete Your System
Add these essential products for optimal results throughout your grow.
0-12-0
PuurPhos 0-12-0: Organic P
OMRI Listed organic phosphorus for bloom and root development.
- OMRI Listed organic phosphorus
- Derived from pumpkin seeds
- Flowering stage booster
From $17.88
0-0-15
PuurK 0-0-15: Organic K
OMRI Listed organic potassium for stronger stems and flowers.
- OMRI Listed organic potassium
- Derived from durian shells
- Strengthens stems and flowers
From $18.88
2-0-0
PuurCalMag: Organic Cal-Mag
OMRI Listed calcium and magnesium for organic coco and RO grows.
- OMRI Listed organic calcium-magnesium
- Derived from limestone and brine
- Essential for coco and RO water
From $14.88
Complete Kit
Save 5%
Save with the Complete Kit
Get everything you need in one package and save up to 15%.
PuurOrganics Complete Kit
Ideal for growers seeking a complete organic solution that delivers clean, balanced nutrition from seed to harvest.
- All-in-one organic system
- Promotes fast, balanced growth
- Maximizes quality and yield — no synthetics
$97.40
$92.53
Legal Disclaimer
Important Information for Our Customers
At Cronk Nutrients, we are committed to providing high-quality liquid plant fertilizers suitable for a variety of horticultural applications. Our products are designed for legal and responsible use by home growers and gardening enthusiasts. We do not condone or promote the use of our products for illegal purposes.
Customers are responsible for adhering to their local and state laws regarding plant cultivation. It is the sole responsibility of the customer to ensure compliance with all applicable laws and regulations. Cronk Nutrients will not be liable for any misuse of our products in violation of any laws.
By purchasing our products, the customer acknowledges their obligation to comply with the legal standards set forth in their jurisdiction and agrees to use our products in accordance with these laws. Cronk Nutrients reserves the right to refuse service to anyone suspected of using our products for illegal cultivation.
Thank you for choosing Cronk Nutrients for your plant nutrition needs. Grow with confidence, grow legally.