Back to Earth Organics Rock Phosphate
Best natural phosphorus source for gardeners seeking stronger roots and yields.
This slow-release phosphorus is the ultimate set-it-and-forget-it solution for building resilient root systems and heavy harvests. You sacrifice the instant gratification of synthetic boosters, but you gain a steady, natural foundation that sustains your garden through every stage of growth.
$14.99
at
High Country Gardens
Who it's for
- Farmers aiming for stronger plant cell wall development
- Gardeners seeking consistent, season-long plant nutrition
- Organic growers prioritizing natural soil fertility inputs
Who should skip it
- Users sensitive to airborne dust during application
- Gardeners needing an immediate nutrient boost for plants
- Growers managing neutral or alkaline soil environments
Performance breakdown
Nutrient Release Stability
Slow-release formula prevents nutrient burn and ensures consistent plant uptake.
Root Development Support
High phosphorus content provides the essential foundation for robust root systems.
Application Versatility
Effective across all growing zones for both spring and fall feeding.
Yield Enhancement
Optimized for maximizing flower production and fruit set in home gardens.
Ease of Application
Simple broadcast method makes soil amendment straightforward for any skill level.
Organic Integrity
All-natural sourcing aligns perfectly with sustainable and chemical-free gardening practices.
Key Specs
Package Weight
5 Pounds
Application Rate
2 lbs per 100 sq ft
Growing Zones
1-11
Organic Status
All natural source
Release Type
Slow Release
Season of Use
Spring, Fall
Primary Benefit
Root Growth
Application Method
Drench
Water Soluble
False
Pet/Child Safe
False
Know before you buy
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