Espoma Organic Rock Phosphate 7.25 lb
Best organic amendment for gardeners seeking stronger roots and vibrant blooms.
Enhance your garden's foundation with Espoma Organic Rock Phosphate. This natural phosphorus amendment is crucial for robust root development, promoting strong growth from seedling to maturity. It's particularly beneficial during flowering stages and for establishing new plantings. Ideal for fall planting of bulbs and perennials, this organic formula ensures plants receive phosphorus in a readily usable form. Packaged conveniently in a 7.25 lb size, it's an excellent choice for enriching your soil and supporting vibrant, healthy plant life throughout the growing season.
$12.89
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-79%
Below average
Weight
7.25
/ lbs
Who it's for
- Organic gardeners seeking chemical-free soil nourishment
- Patient gardeners prioritizing long-term soil health
- Flower and fruit growers aiming for robust plant development
Who should skip it
- Gardeners needing immediate nutrient results for struggling plants
- Gardeners working with highly alkaline soil conditions
- Users preferring highly concentrated, fast-acting synthetic fertilizers
Performance breakdown
Root development support
High phosphorus content drives exceptional root establishment for new plantings.
Organic integrity
Certified organic formula ensures safe, natural soil enrichment for home gardens.
Nutrient release efficiency
Slow-release granular structure provides steady, long-term feeding for perennials.
Application versatility
Perfectly suited for fall bulb planting and general flowering shrub maintenance.
Ease of handling
The 7.25 lb bag size is manageable for most residential gardeners.
Flowering performance
Directly promotes vibrant blooms by correcting phosphorus deficiencies in soil.
Key Specs
Weight
7.25 lbs
SKU
144000
UPC
00050197012072
Fertilizer Type
Rock Phosphate
Fertilizer Source
Organic, Natural
Organic Certified
True
Season of Application
Fall
Target Plant Type
Flowers, Trees and Shrubs
Features
- Natural phosphorus source for plant health
- Stimulates strong root development
- Ideal for new plantings
- Supports fall planting
- Organic formulation
- Promotes flowering
- Enhances seedling growth
What customers say
Customers consistently praise the high quality and noticeable effectiveness of this organic rock phosphate, especially for enhancing blooms and root structure in vegetable gardens and flowering plants. Gardeners appreciate how easily the fine powder blends into soil or compost tea, making application straightforward and mess free. The trusted Espoma brand reinforces confidence in the product's long term, slow release benefits, confirming its strong value proposition for serious organic growers.
Know before you buy
Rock Phosphate is a natural source of phosphorus, which is essential for strong root development and vibrant flowering. It helps establish a solid foundation for new plantings and supports the overall health of your perennials and bulbs.
Yes, this product is an organic-certified, natural mineral amendment. It contains no synthetic chemicals, making it a safe choice for organic vegetable and flower gardens.
This is a slow-release fertilizer. Because it is a natural mineral, it breaks down gradually in the soil to provide a steady, long-term supply of phosphorus rather than an immediate nutrient spike.
While it can be used whenever plants need a phosphorus boost, it is particularly effective when applied in the fall. This timing is ideal for preparing bulbs and perennials for successful growth in the following season.
It is specifically formulated for flowers, trees, and shrubs that require phosphorus for root and bloom development. It is not intended as a general-purpose fertilizer for all plant types.
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