





From the brand



About Us
UNCO Industries has been in worm farming for over 45 years, beginning as a small redworm bait operation in an old dairy barn. As demand grew, the company expanded and invested in controlled, scalable production. In 1983 it established a climate-controlled facility, and in 2011 moved to a much larger site in Union Grove, Wisconsin to support continued growth.
Why are Wiggle Worm castings better than the rest?
Our unique process delivers pure earthworm castings free of impurities like undigested bedding, stones, straw, and worm eggs. Our multi-screening process removes eggs without heat or sterilization, preserving beneficial bacteria and microbes.
What are the earthworms fed?
An organic material containing a wide variety of minerals and trace elements
Does this product provide long-term nutrition for plants?
Yes, in addition to readily available nutrients, it contains nutrients that release slowly, supporting plant growth for weeks or even months.


For Organic Gardening
Our Pure Worm Castings are OMRI listed organic, nutrient-rich, and mineral-dense pure castings, not vermicompost or uneaten worm bedding, and is one of the only castings products to be recognized as a fertilizer due to our special manufacturing and harvesting process.
More from Wiggle Worm!
Combo Pack: You will receive (3) Worm Egg Material Raised Bed Soil Mix as well as (1) Pure Worm Castings Plus Worm Egg Material in black-and-white printed bags – Each bag contains 40 pounds of product.
Soil and Fertilizer Mixture: Wiggle Worm Raised Bed Mix is composed of high-quality compost soil blended with trace amounts of worm castings and worm eggs – Worm eggs are hardly noticeable within worm castings, and colors/levels of translucency may vary.
Fertilizer and Soil Amendment: Pure Worm Castings Plus Egg Material is made from a combination of our Pure Worm Castings mixed with added Worm Egg Material to enhance the microbial activity of your soil while providing aeration, improving drainage, and adding nutrients for proper plant growth and health.
Promotes Living Soil: Worm egg material is the cocoons the worms lay, and tiny balls of soil mixed with bits of bedding not eaten by our worms, which helps to increase the microbial activity in soil – Some debris including small rocks may make it through the sifting process.
A Chance for Worms: Worm eggs may hatch in soil, adapt, and begin to help improve soil quality – Worm tunnels bring in oxygen, drain water, and create space for plant roots, and live worms will produce more castings.
2 reviews for Wiggle Worm Combo Package – 4 Total 40-Pound Bags – Egg Material Raised Bed Soil Mix (3 Count) and Pure Worm Castings Plus Worm Egg Material Fertilizer and Amendment (1 Count)
Add a review
$50.99

cynsational –
Plants love this!
Using this in a raised bed. Cleared out one section to prep for new plants and placed some of this on top of the existing soil to mix it in. After incorporating it and watering, the plants around the area are looking more lively. Good stuff!
Debbie Douglas –
Best soil additive
Have been using this all summer adding it to my potted plants