Espoma Organic Greenrock Natural Mineral Supplement
Best natural mineral supplement for vibrant, healthy lawns and gardens.
Enhance your garden's vitality with Espoma Organic Greenrock Natural Mineral Supplement. This all-natural granular formula provides essential iron, calcium, and magnesium to promote deep green coloration and vigorous growth in lawns, flower beds, and vegetable gardens. It serves as an excellent alternative to traditional Greensand, enriching your soil with vital micronutrients. Apply at planting or to established plants to boost overall health and vibrancy, ensuring a lush and thriving landscape.
$12.99
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-79%
Below average
Fertilizer Source
Organic, Natural, Mineral Based
/ Organic, Natural, Mineral Based
Who it's for
- Organic gardeners prioritizing natural soil health and safety
- Plant enthusiasts seeking vibrant color and robust growth
- Gardeners struggling with difficult clay or sandy soil textures
Who should skip it
- Users looking for an all-in-one primary fertilizer solution
- Budget-conscious gardeners managing large-scale outdoor plots
- Gardeners needing immediate growth results for their plants
Performance breakdown
Greening Efficacy
High mineral concentration delivers rapid, visible improvements in foliage color depth.
Soil Enrichment
Provides a robust micronutrient profile that effectively revitalizes tired garden soil.
Application Versatility
Granular consistency works seamlessly for both broad lawns and individual plants.
Organic Integrity
Certified organic formulation ensures safe, sustainable nourishment for edible vegetable gardens.
Coverage Efficiency
Best suited for targeted garden beds rather than large-scale lawn applications.
Ease of Incorporation
Simple to mix into soil, though manual spreading requires consistent physical effort.
Key Specs
Fertilizer Source
Organic, Natural, Mineral Based
Coverage Area
140 square feet
Application Method
Spread evenly and incorporate into soil; mix 1/3 cup for individual plants
Organic Certified
True
Container Weight
7 lbs
Water Soluble
False
Target Plant Type
Lawn, Vegetables, Flowers
Fertilizer Form
Granular
Features
- Natural source of iron, calcium, and magnesium
- Promotes deep green coloration
- Encourages vigorous plant growth
- Alternative to Greensand products
- Suitable for lawns and gardens
- Enhances soil composition
- Organic and natural formulation
What customers say
Gardeners consistently praise the exceptional quality and effectiveness of Espoma Greenrock. Users report significant improvements in plant health, vibrant color, and increased yield, often noting its concentrated nature means a small amount is sufficient. The trusted organic composition offers peace of mind for those preferring natural soil amendments. Application is straightforward, blending easily into soil or potting mixes. The overall consensus confirms this supplement delivers tangible results, proving a worthwhile investment for achieving robust growth naturally.
Know before you buy
This supplement provides a natural boost of iron, calcium, and magnesium. These minerals are essential for improving soil health and supporting vibrant, deep green plant growth.
Yes, Greenrock is formulated as an effective alternative to traditional Greensand. It offers similar benefits for soil enrichment and plant vitality using a natural, mineral-based composition.
For individual plants, mix 1/3 cup of the granules directly into the soil. For larger areas, spread the product evenly across the soil surface based on your desired application rate, which ranges from 5 to 30 pounds per 100 square feet depending on your soil's needs.
No, Greenrock is a granular, mineral-based supplement and is not water-soluble. It is designed to be incorporated into the soil to gradually release its nutrients.
Yes, Greenrock is an organic-certified formula suitable for use in vegetable gardens, flower beds, and lawns. It is designed to enhance overall plant health without the use of synthetic chemicals.
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