Best Phosphorus Fertilizer (0-46-0): Triple Superphosphate for Root & Bloom Development Buy on Old Cobblers Farm
Old Cobblers Farm™ Wicked Growth 0-46-0 Fertilizer – Triple Superphosphate (TSP)
by Wicked Growth — Littleton, NH
46% Pure Phosphorus
The most concentrated phosphorus source available. Every pound delivers maximum P₂O₅ without nitrogen or potassium diluting the formula.
Drives Root Development
Phosphorus is the engine of root growth. Critical for transplant establishment, seedling vigor, and deep root systems in trees and shrubs.
Triggers Bloom & Fruit Set
Phosphorus fuels flower bud formation and fruit development. Essential for roses, annuals, fruit trees, and any flowering crop.
Targeted P Correction
Zero N, zero K means you address phosphorus deficiency without adding nutrients your soil doesn't need. Precision feeding for soil-test-based programs.
5,000 sq ft Coverage
At the light rate, one 5 lb bag covers up to 5,000 sq ft. Highly concentrated — a little goes a long way.
Perfect for Bulbs & Transplants
Work into the planting hole for transplants, mix into bulb beds in fall. Phosphorus stays in the root zone where plants need it most.
Blends With Any Program
Add to your existing fertilizer rotation alongside nitrogen and potassium products. No interference, no imbalance.
Trusted by 20,000+ Growers
Developed in Littleton, New Hampshire. Sold nationwide on Amazon, Walmart, eBay, and theoldcobblersfarm.com.
| NPK Ratio | 0-46-0 |
| Derived From | Triple Superphosphate (100%) |
| Item Form | Granular |
| Release Speed | Moderate-release |
| Application Rate | 1–2 lbs / 1,000 sq ft |
| Method | Broadcast, band, or incorporate |
| Frequency | 1x per season (pre-plant) |
| Sizes | 5 lb | 10 lb | 15 lb | 20 lb |
| Supports | All crops, transplants, bulbs, root vegetables, flowering plants |
| Setups | Garden beds, raised beds, containers, field rows, orchards |
| Feature | Old Cobblers Farm™ Wicked Growth 0-46-0 Fertilizer – Triple Superphosphate (TSP) | Triple Phosphate (TP6) | Triple Super Phosphate | Triple Superphosphate | Triple Super Phosphate 0-46-0 | Triple Super Phosphate Bloom Booster | Triple Super Phosphate Bulb Booster | Triple Superphosphate + 13.5% Calcium |
|---|---|---|---|---|---|---|---|---|
| NPK | 0-46-0 | 0-45-0 | 0-45-0 | 0-45-0 | 0-46-0 | 0-46-0 | 0-46-0 | 0-45-0 |
| Phosphorus | 46.0% | 45.0% | 45.0% | 45.0% | 46.0% | 46.0% | 46.0% | 45.0% |
| Potassium | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Form | Granular | |||||||
| Sizes | 5 lb | 10 lb | 15 lb | 20 lb | 6.5 lb | 3.25 / 4 lb | 4 lb | 2 / 5 / 10 / 20 lb | 5 lb | 1 / 5 / 10 / 20 / 50 lb | 5 / 40 lb |
| Release Speed | Moderate-release |
Triple Phosphate (TP6)
Triple Super Phosphate
Triple Superphosphate
Triple Super Phosphate 0-46-0
Triple Super Phosphate Bloom Booster
Triple Super Phosphate Bulb Booster
Triple Superphosphate + 13.5% Calcium
46% Pure Phosphorus
The most concentrated phosphorus source available. Every pound delivers maximum P₂O₅ without nitrogen or potassium diluting the formula.
Drives Root Development
Phosphorus is the engine of root growth. Critical for transplant establishment, seedling vigor, and deep root systems in trees and shrubs.
Triggers Bloom & Fruit Set
Phosphorus fuels flower bud formation and fruit development. Essential for roses, annuals, fruit trees, and any flowering crop.
Targeted P Correction
Zero N, zero K means you address phosphorus deficiency without adding nutrients your soil doesn't need. Precision feeding for soil-test-based programs.
