Wiggle Worm Soil Builder Pure Worm Castings Organic Fertilizer | 30lb - OMRI Listed

100% Pure Worm Castings for Living Soil, 30lb

Chemical fertilizers feed plants directly, but they don't build the microbial life that keeps soil productive on its own over time. Wiggle Worm Soil Builder takes a different approach, supplying 100% pure organic worm castings produced under controlled conditions around the clock, so the finished product carries the nutrients and microbial activity that turn ordinary soil into a living, self-sustaining root environment.

This 30lb size is built for growers covering a large garden footprint or multiple planting areas who want to buy castings in bulk rather than by the small bag.

Key Features & Benefits

• 100% pure organic castings — produced under fully controlled worm conditions for a consistent product batch to batch.
• Living soil microbial activity — supports a thriving root zone rather than just feeding the plant directly.
• Small application amounts go far — a half handful around a transplant's root zone is a typical dose.
• OMRI Listed — certified for use in organic production.

Who Should Use Wiggle Worm Soil Builder

This suits gardeners who want a pure worm-castings soil amendment and fertilizer for vegetables, shrubs, and grasses, applied in small amounts around the root zone rather than worked through an entire bed.

About Unco Industries

Unco Industries controls the worm-castings production environment closely, aiming for a consistent, pure end product across every batch of Wiggle Worm Soil Builder.

Frequently Asked Questions

How is Wiggle Worm Soil Builder different from a bagged compost or manure amendment?

Worm castings are the fully digested output of worms processing organic matter, which leaves behind a finer, more concentrated material with active microbial life. That's different from raw compost or manure, which hasn't been through that digestion process and typically needs more time to break down.

How much should I apply per plant?

A half handful around the root zone of a transplant is a typical application. Because castings are concentrated, a small amount goes further than the volume of a standard bagged soil amendment.

What does '100% pure' mean for this product specifically?

It means the castings aren't blended with fillers, bedding material, or other soil amendments — what's in the bag is worm castings produced under controlled conditions. That consistency is part of why the product is described as pure rather than a worm-castings-based blend.

Is this product OMRI Listed?

Yes, Wiggle Worm Soil Builder is OMRI Listed and approved for use in certified organic production. That status applies across all package sizes of this product.

What plants is this suited for?

It works as a soil amendment and fertilizer for vegetables, shrubs, and grasses. It's applied the same way regardless of which of these plant types it's used on.