Cronk PuurOrganics 5-Part Kit | OMRI Organic Plant Fertilizer
500mL
Sale price
$92.53
Regular price
$97.40
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In stock
Cronk PuurOrganics 5-Part Kit | OMRI Organic Plant Fertilizer
Sale price
$92.53
Regular price
$97.40
Unit price
$1.09/fl oz
Complete System
Product Line
Complete Systems
System Type
Complete Organic System
Growing Medium
Soil, Coco, Living Soil
Certification
OMRI Listed
Product Overview
The PuurOrganics Kit delivers OMRI-certified organic nutrition through a modular 5-part system that provides complete NPK control while maintaining full organic compliance. Adjust nitrogen, phosphorus, and potassium independently at each growth stage—precision previously impossible with organic fertilizers.
Traditional organic fertilizers force compromises through fixed nutrient ratios. Pre-mixed organic solutions deliver the same NPK whether feeding seedlings or flowering plants. The PuurOrganics system eliminates these limitations with separate N, P, and K components that allow growers to dial in exact ratios for each developmental stage.
Kit Contents
- PuurNitro 8-0-0 – Organic nitrogen from upcycled soy protein
- PuurPhos 0-12-0 – Organic phosphorus from upcycled pumpkin seeds
- PuurK 0-0-15 – Organic potassium from upcycled durian shells
- PuurCalMag – Organic calcium and magnesium with acetic acid chelation
- PuurBalance 2-0-0 – 21 L-amino acids and chelated micronutrients
Key Benefits
- Independent NPK control for precise stage-specific organic feeding
- Fully soluble formulas—no sediment or clogging in any system
- Upcycled ingredients from sustainable agricultural sources
- OMRI Listed for certified organic production
Best Results In
Soil, living soil, and coco coir—where organic inputs thrive and beneficial biology supports nutrient cycling. PuurOrganics is technically compatible with hydroponics, but running organics in DWC, RDWC, or recirculating systems requires more attention to reservoir management, pH stability, and potential biofilm. If you're new to hydroponics, we recommend starting with the Classic 3-Part system for those applications.
Important Compatibility Note
PuurOrganics products are NOT compatible with Classic Line or Bonnie & Clyde base nutrients. Use exclusively within the PuurOrganics system for organic production.
What's Inside
What's Included in This Kit
- Cronk PuurNitro 8-0-0 | Organic Nitrogen Plant Fertilizer
- Cronk PuurPhos 0-12-0 | Organic Phosphorus Plant Fertilizer
- Cronk PuurK 0-0-15 | Organic Potassium Plant Fertilizer
- Cronk PuurCalMag | Organic Cal-Mag Plant Supplement
- Cronk PuurBalance 2-0-0 | Organic Micronutrients + Aminos
How To Use
PuurOrganics Complete Kit
PuurNitro provides clean plant-based nitrogen for vegetative growth. PuurPhos delivers organic phosphorus for root development and flowering. PuurK supplies organic potassium for bloom density and plant strength. PuurCalMag prevents calcium and magnesium deficiencies. PuurBalance enhances nutrient uptake with 21 L-amino acids and chelated micronutrients. All five products work together as a complete organic nutrient system. Detailed week-by-week feeding instructions are available in the Feed Schedules section.
- Mix in room temperature water (65-72°F / 18-22°C)
- If using Armadillo Armour, add it FIRST before all other nutrients
- Mixing Order: Armadillo (if using) → PuurNitro (1st) → PuurPhos (2nd) → PuurK (3rd) → PuurCalMag (4th) → PuurBalance (5th) → Other Additives → Monkey Juice (LAST)
- Frequency: In soil, feed 1-2 times per week. In coco, feed with every watering. PuurBalance once per week max.
- All five products are used together throughout the grow cycle
- Dosages adjust based on growth stage (see Feed Schedules section)
- Complete organic nutrition from seed to harvest
- For specific dosages and week-by-week schedule, see Feed Schedules section
💡 PuurOrganic Mixing: Armadillo (if using) → PuurNitro → 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 before all other nutrients
- Add nutrients in proper mixing order (see Compatibility section)
- Mix each nutrient thoroughly before adding the next
- Check and adjust pH (5.6-6.4 depending on stage)
- Apply to plants - water until 10-20% runoff
Customer Reviews
Feed Schedules & Dosage
Cronk PuurOrganics 5-Part Kit | OMRI Organic Plant Fertilizer - Feed Schedule
This kit includes everything you need for a complete grow cycle.
Detailed week-by-week feeding instructions are available on the product label and our downloadable feed charts.
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’s included in the PuurOrganics Complete 5-Part Kit?
PuurNitro (8-0-0), PuurPhos (0-12-0), PuurK (0-0-15), PuurCalMag, and PuurBalance (2-0-0). Built to run seed-to-harvest.
Who is this kit best for?
Organic and living-soil growers, coco/Pro-Mix users, and outdoor gardeners wanting clean, natural nutrition for the full cycle.
Which grow media and systems does it support?
Soil/living soil, coco, hydro, and drip, fully soluble and line-safe. For AutoPot-style single reservoirs, use a small mixing pump. The reservoir won’t film, but the pot inlet/tray can have a biofilm, run ½-strength and flush/clean inlets weekly.
Can I use PuurOrganics in AutoPot systems?
Yes, PuurOrganics is fully compatible with AutoPots. Clean your reservoir weekly to prevent biofilm buildup in the tray. The sediment-free formula won't clog AquaAvalves when used at half the recommended rates.
What does each bottle do?
PuurNitro fuels vigorous veg (organic N), PuurPhos drives roots and early bloom (P), PuurK boosts density and finish (K), PuurCalMag supports structure (Ca/Mg), and PuurBalance provides micros with amino-driven uptake.
How do I mix it correctly?
PuurNitro → PuurPhos → PuurK → PuurCalMag → PuurBalance. If using Armadillo Armour, add it first (before all). Stir between each addition, never mix concentrates, and adjust pH last.
Can I combine this with the Classic 3-Part or Bonnie & Clyde bases?
Don’t mix base systems—use PuurOrganics bases only. All Cronk additives are compatible (Armadillo Armour, Sticky Bandit, Monkey Juice, Bud Booster); silica first, additives after bases, microbes last.
Do I need extras like microbes, carbs, or silica?
Optional but helpful—Monkey Juice (microbes), Sticky Bandit (carbs), Armadillo Armour (silica). Add silica first, bases next, carbs after bases, and microbes last.
Complete Your System
Add these essential products for optimal results throughout your grow.
0-0-1
Sticky Bandit: Terp Booster
Carbohydrate formula for enhanced terpenes, resin, and flavor.
- Carbohydrate and potassium formula
- Enhances terpene production
- Feeds beneficial microbes
From $18.88
Beneficial Bacteria
Monkey Juice: Root Bacteria
Beneficial bacteria for stronger roots and better nutrient uptake.
- Beneficial bacteria formula
- Contains Bacillus subtilis and licheniformis
- Improves nutrient uptake
From $25.88
0-0-1
Armadillo Armour: Silicon
Bioavailable silicon for stronger stems and stress resistance.
- Monosilicic acid formula
- Strengthens cell walls
- Increases heat and stress tolerance
From $38.88
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.