Wiggle Worm Worm Castings Fertilizer
Best organic soil enrichment for vibrant plant growth and robust gardens.
This OMRI-listed organic fertilizer uses pure worm castings to dramatically improve soil structure and health. It enhances aeration, drainage, and water retention while boosting beneficial microbes for stronger roots and better yields. Its odorless, non-toxic formula is convenient for both indoor and outdoor use, requiring minimal application for significant results.
$15.80
at
GrowGeneration
More Wiggle Worm Soil Builder options
Who it's for
- Gardeners seeking a natural boost for healthier, more resilient plants
- Eco-conscious cultivators aiming to build long-term soil fertility
- Home growers prioritizing organic methods and environmental safety
Who should skip it
- Budget-conscious gardeners managing very large growing areas
- Commercial growers or those with vast outdoor landscapes
- Impatient growers expecting immediate, dramatic plant changes
Performance breakdown
Soil enrichment
Mineral-dense castings provide a potent boost to soil microbial activity.
Ease of application
Simple top-dressing method makes feeding plants effortless for any gardener.
Safety profile
Non-toxic, odorless formula is perfectly safe for homes with pets.
Versatility
Performs equally well for indoor houseplants and outdoor garden beds.
Organic integrity
OMRI listing ensures the highest standard for organic gardening practices.
Structural improvement
Noticeably enhances aeration and drainage for healthier, more resilient root systems.
Key Specs
Weight
30 lbs
Material
Pure Worm Castings
Form
Granular
OMRI Certified
Yes
Water Soluble
No
Pet/Child Safe
Yes
Application Rate
A handful, or half a cup
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