Best Zero-Phosphorus Fertilizer (8-0-16): Nitrogen & Potassium Without the P for Established Plants & Waterway Zones Buy on Old Cobblers Farm
More nitrogen than the 6-0-16 with the same zero-phosphorus safety. 8% N for stronger vegetative push plus 16% K for fruit quality and stress resistance — all without contributing phosphorus to runoff.
Old Cobblers Farm™ Wicked Growth 8-0-16 Fertilizer – Zero Phosphorus
by Conventional Fertilizer — Littleton, NH
Zero Phosphorus — Waterway Compliant
Meets the strictest phosphorus-free application requirements. No P runoff risk near ponds, streams, lakes, or in municipalities with phosphorus bans.
16% Potassium for Plant Strength
Heavy potassium load drives fruit quality, sugar content, cell wall strength, drought tolerance, and winter hardiness across all crops and turf.
8% Nitrogen — Moderate Growth Push
More nitrogen than the 6-0-16 variant for situations where you need a stronger vegetative response alongside potassium. Ideal for established lawns and mature orchards.
Soil-Test Driven
When soil tests show adequate or excessive phosphorus levels, this formula feeds exactly what is needed and nothing that isn't. Precision fertilization.
Flexible Coverage Rates
Garden rate covers 170–250 sq ft per bag. Lawn rate stretches to 625–1,000 sq ft. Scale application to your specific needs.
Orchard & Fruit Tree Ready
Established fruit trees with mature root systems rarely need additional phosphorus. This formula gives them the N and K they actually use.
Pairs With P Products When Needed
In the rare case you need phosphorus, add 0-46-0 Triple Superphosphate separately. Zero-P base lets you control every nutrient independently.
Trusted by 20,000+ Growers
Developed in Littleton, New Hampshire. Sold nationwide on Amazon, Walmart, eBay, and theoldcobblersfarm.com.
| NPK Ratio | 8-0-16 |
| Item Form | Granular |
| Coverage | 170–250 sq ft (garden) | 625–1,000 sq ft (lawn) per 5 lb bag |
| Category | Conventional Fertilizer |
| Type | All-Purpose NPK Blends |
| Sizes | 5 lb | 10 lb | 15 lb | 20 lb |
| NPK | 8-0-16 |
| Nitrogen | 8% |
| Phosphorus | 0% |
| Potassium | 16% soluble potash |
| Form | Granular |
| Rate | 2–3 lbs / 100 sq ft (garden) |
| Method | Broadcast or side-dress |
| Sizes | 5, 10, 15, 20 lb bags |
| Best For | Established lawns, orchards, P-restricted zones, waterway areas |
| Feature | Old Cobblers Farm™ Wicked Growth 8-0-16 Fertilizer – Zero Phosphorus Old Cobblers Farm | Stress Blend Granular Lawn Fertilizer Yard Mastery | Winter Survival Fall Lawn Fertilizer Jonathan Green | PGF Complete Fertilizer The Andersons | Phosphorus-Free Liquid Lawn Food Simple Lawn Solutions | Zero Phosphorus Turf Fertilizer LESCO | Turf Builder Lawn Food Scotts | Fairway Formula Fall Fertilizer GreenView | Centipede Lawn Fertilizer Ferti-lome | Lawn Kickstart Liquid Fertilizer Sunday | Gator SRN Liquid Fertilizer Howard Fertilizer |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NPK | 8-0-16 | 7-0-20 | 10-0-20 | 16-0-8 | 15-0-15 | 24-0-11 | 32-0-4 | 30-0-12 | 15-0-15 | 15-0-0 | 8-0-16 |
| Form | Granular | — | — | — | — | — | — | — | — | — | — |
| Coverage | 170–250 sq ft (garden) | 625–1,000 sq ft (lawn) per 5 lb bag | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed |
| Price / Size | 5 lb | 10 lb | 15 lb | 20 lb | $40-$70 | $32-$75 | $55-$89 | $23-$25 | $55-$65 | $25-$60 | $47-$50 | $25-$30 | $20-$30 | $45-$60 |
| Our Take | The higher-nitrogen zero-P option in the Wicked Growth lineup. 8% n... | — | — | — | — | — | — | — | — | — | — |
Stress Blend Granular Lawn Fertilizer
Winter Survival Fall Lawn Fertilizer
PGF Complete Fertilizer
Phosphorus-Free Liquid Lawn Food
Zero Phosphorus Turf Fertilizer
Turf Builder Lawn Food
Fairway Formula Fall Fertilizer
Centipede Lawn Fertilizer
Lawn Kickstart Liquid Fertilizer
Gator SRN Liquid Fertilizer
Zero Phosphorus — Waterway Compliant
Meets the strictest phosphorus-free application requirements. No P runoff risk near ponds, streams, lakes, or in municipalities with phosphorus bans.
16% Potassium for Plant Strength
Heavy potassium load drives fruit quality, sugar content, cell wall strength, drought tolerance, and winter hardiness across all crops and turf.
8% Nitrogen — Moderate Growth Push
More nitrogen than the 6-0-16 variant for situations where you need a stronger vegetative response alongside potassium. Ideal for established lawns and mature orchards.
Soil-Test Driven
When soil tests show adequate or excessive phosphorus levels, this formula feeds exactly what is needed and nothing that isn't. Precision fertilization.
