Down to Earth Rock Phosphate 5 LB
Best natural soil amendment for organic vegetable and flower gardeners.
Enhance your garden with Down to Earth Rock Phosphate, an all-natural soil amendment derived from Neem Tree seeds. This versatile fertilizer enriches both garden and agricultural soils, promoting robust plant development. It can be easily mixed into potting media, applied as a top dressing, or steeped to create a potent liquid feed for immediate nutrient uptake. Packaged in a convenient 5lb size, it's an excellent choice for nurturing vegetables and flowers.
$14.99
Owner Satisfaction
4.6
/ 5
Category Rank
1939
/ 4425
#1939 in Fertilizers
Price vs Category Average
-76%
Below average
Package Weight
5
/ lbs
Who it's for
- Gardeners seeking low-maintenance root and bloom support
- Organic growers maintaining strict certification standards
- Soil health enthusiasts building long-term fertility
Who should skip it
- Impatient growers needing immediate nutrient uptake
- Gardeners working with neutral or alkaline soil
- Safety-conscious users concerned about long-term mineral accumulation
Performance breakdown
Nutrient Longevity
Slow-release formula provides consistent nourishment throughout the entire growing season.
Application Versatility
Easily adapts to soil mixing, top dressing, or custom liquid steeping.
Root Development Support
High phosphorus content drives robust root systems for stronger, healthier plants.
Ease of Handling
The five-pound bag size is manageable for most home garden projects.
Solubility Profile
Granular structure requires steeping for liquid use rather than instant dissolution.
Organic Integrity
Natural sourcing offers a clean alternative to synthetic chemical fertilizers.
Key Specs
Package Weight
5 lbs
Fertilizer Source
Natural
Application Method
Soil incorporation, top dressing, or liquid steep
Target Plant Type
Vegetables, Flowers
Fertilizer Form
Granular
Release Type
Slow Release
Water Soluble
False
Organic Certified
False
Features
- All-natural soil enrichment
- Promotes healthy plant growth
- Versatile application methods
- Creates a potent liquid feed
- Ideal for vegetables and flowers
- Derived from Neem Tree seeds
What customers say
Gardeners highly value this rock phosphate as an essential, high-quality amendment for organic growing. Its core appeal centers on its effectiveness as a slow-release phosphorus source, crucial for promoting strong roots and abundant flowers. Users appreciate the fine, flour-like consistency, which allows for easy mixing into soil or compost teas, simplifying application across various gardening setups. While results are not immediate, customers trust this long-term mechanism for building lasting soil health over quick fixes. The OMRI listing further confirms its suitability for certified organic operations, solidifying its reputation as a reliable, foundational product for maximizing yields sustainably.
Know before you buy
Rock Phosphate is primarily used to provide a slow-release source of phosphorus, which is essential for strong root development, flower production, and overall plant vigor.
Yes, you can steep the granules in water to create a liquid feed. However, keep in mind that the product is not water-soluble, so you will need to strain the mixture before applying it to your plants.
While the product is derived from natural sources, it is not officially organic certified. You should check your specific local organic gardening standards if you are maintaining a strictly certified organic plot.
For established plants, the most effective method is a top dressing. Simply sprinkle the granules around the base of the plant and gently work them into the top layer of soil, then water thoroughly to help the nutrients move into the root zone.
Because this is a slow-release fertilizer, it does not provide an immediate nutrient spike. It is designed to break down gradually over time, providing a steady, long-term supply of phosphorus to your soil.
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