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GardenIQ — Nutrx™ Technology
PhosFuel [5-9-13]
High-phosphorus booster for flowering and fruiting plants.
Size
$30.00
Quantity
Save $10 + free shipping
Add a hero fertilizer below and the discount applies automatically.
Choose your hero fertilizer
High Yield [2-0-4]
Vegetable garden fish emulsion fertilizer
$30.00
BlossoMax [7-0-2]
Flower garden liquid fertilizer
$45.00
Blended in Chicago
Free shipping on bundles
Nutrx™ technology
About this product
Power the moments that matter most.
Phosphorus is the energy currency of the plant. Every flowering, fruiting, and root-to-shoot energy transfer depends on it. PhosFuel delivers a high-phosphorus charge at the moments your plants are working hardest — transplant, bud set, and the onset of bloom or fruit development.
This is not a season-long formula. PhosFuel is a specialist — reach for it at the right moment and it delivers. Use it at transplant to support establishment energy, at early bud set to prime the flowering response, and at the onset of fruiting to drive yield.
Formulated for vegetable gardens and flower gardens only. Not recommended for turf or houseplants.
Powered by Nutrx™ technology for maximum absorption at every critical stage. Pair with High Yield or BlossoMax for a complete program — $10 off and free shipping when you bundle.
This is not a season-long formula. PhosFuel is a specialist — reach for it at the right moment and it delivers. Use it at transplant to support establishment energy, at early bud set to prime the flowering response, and at the onset of fruiting to drive yield.
Formulated for vegetable gardens and flower gardens only. Not recommended for turf or houseplants.
Powered by Nutrx™ technology for maximum absorption at every critical stage. Pair with High Yield or BlossoMax for a complete program — $10 off and free shipping when you bundle.
Best for
- Vegetable gardens at transplant and fruiting stages
- Flower gardens at bud set and peak bloom
- Tomatoes, peppers, squash, and other fruiting crops
- Flowering annuals, perennials, and ornamentals
- Gardeners who want stage-specific precision
Application
Apply at the right moment. See the difference.
01
Identify the stage
Use PhosFuel at transplant, early bud set, or the onset of flowering or fruiting — not on a regular weekly schedule.
02
Dilute and apply
Mix 1–4 oz per gallon of water. Soak the soil at the base of the plant at each key growth stage. For stronger results, use the upper end of the ratio.
03
Return to your hero
After each PhosFuel application, continue with your regular High Yield or BlossoMax program. PhosFuel works best as a targeted addition, not a replacement.
The science
Why PhosFuel works: Nutrx™ technology
Every GardenIQ formula is powered by Nutrx™ — a proprietary blend of carbon complexes, humic and fulvic acids, enzymes, and amino acids developed through decades of professional agronomic research. Most fertilizers sit in the soil. Nutrx™ is designed to maximize how much your plants actually absorb — so PhosFuel's high-phosphorus charge gets where it needs to go, exactly when your plant needs it most.
Learn the science behind Nutrx™ →
Customer reviews
What PhosFuel customers are saying
Guaranteed Analysis
What's Inside
| Total Nitrogen (N) | 5.0% |
| Ammoniacal Nitrogen | 0.60% |
| Nitrate Nitrogen | 1.00% |
| Urea Nitrogen | 3.40% |
| Available Phosphate (P₂O₅) | 9.0% |
| Soluble Potash (K₂O) | 13.0% |
Derived From
Monopotassium Phosphate, Potassium Nitrate, Ammonium Thiosulfate, Urea, & Inert Ingredients