Wiggle Worm Soil Builder Earthworm Castings
Best organic soil amendment for gardeners seeking healthier, more vigorous plant growth.
This is the gold standard for soil health, turning tired dirt into a nutrient-dense foundation for everything from seedlings to mature roses. It’s a messy, organic trade-off, but the trade-off for handling raw castings is a level of root vitality and germination success that synthetic fertilizers simply cannot replicate.
$26.05
at
CapCityHydro (Capital City Organics)
More Wiggle Worm Soil Builder options
Who it's for
- Gardeners worried about damaging sensitive seedlings or delicate roots
- Organic growers seeking to improve soil texture and water retention
- Plant enthusiasts prioritizing natural, balanced nutrient uptake
Who should skip it
- Budget-conscious shoppers comparing costs against synthetic alternatives
- Gardeners needing an immediate, high-potency nutrient boost
- Individuals with physical limitations or limited storage space
Performance breakdown
Soil conditioning efficacy
Transforms dense dirt into nutrient-dense, crumbly super humus effortlessly.
Nutrient bioavailability
Water-soluble form ensures plants absorb essential minerals almost immediately.
Germination support
Provides the perfect microbial environment for high-success seed starting.
Versatility of application
Works seamlessly across indoor houseplants, vegetable patches, and expansive lawns.
Organic purity
Certified organic source guarantees a clean, chemical-free gardening experience.
Ease of distribution
Granular texture allows for simple, mess-free spreading across garden beds.
Key Specs
Weight
30 lbs
Fertilizer Type
Natural, Organic
Nutrient Form
Water soluble
Feedstock
Rich peat humus
Fertilizer Source
Organic, Natural
Organic Certified
Yes
Water Soluble
Yes
Target Plant Type
Lawn, Vegetables, Flowers, Trees and Shrubs, Houseplants
Fertilizer Form
Granular
Release Type
Slow Release
Know before you buy
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Ask Metto anything about the Wiggle Worm Soil Builder Earthworm Castings before you decide.
