Specifications and Directions for Use

Wiggle Worm Soil Builder™ Earthworm Castings are an excellent all natural plant food that come to you directly from Mother Nature in their purest form. For millions of years, the incredible earthworm has been one of nature's greatest producers of readily available plant food. When used in greater concentrations than found in nature, this non-burning, long lasting organic fertilizer can provide remarkable benefits such as: 

  • Vigorous Plant Growth                             
  • Fibrous Root System
  • Improved Aeration of Soil

Earthworm Castings Organic Fertilizer 1 - 0 - 0

Guaranteed Analysis
Total Nitrogen (N) 1%
0.1% Water Soluble Nitrogen
0.9% Water Insoluble Nitrogen
Calcium (Ca) 1%
Iron (Fe) 0.2%
Source: Earthworm Castings


Vegetables and Annual Flowers
Line bottom and sides of plant holes and seed furrows with 1"-2" of earthworm castings. Set seeds or plants in place and cover with soil. Side dress during growing seasons at a rate of 1/2 cup per plant or 1 cup per linear foot of row once every 2 months.

Work 1/2 cup Earthworm castings into the soil above their root zone taking care not to damage shallow roots. Apply in spring, early summer and early fall.

Potted Plants and Seeds/Seed Flats - New
Potting mix-use 1 part Earthworm castings to 3 parts soil.

Potted Plants, Window Boxes or Hanging Baskets - Established -
Add 1-2 inches of Earthworm castings to top of soil. Mix in taking care not to damage shallow roots - water - repeat every 2-3 months.

Roses, Trees, Shrubs and Berries - New or freshly transplanted
Mix 1 part Earthworm castings to 3 parts soil. Surround newly dug hole with mixture. Spread roots over a mound of the mix in the hole and cover.

Roses - Established
Mix 4 cups of earthworm castings into soil 2-3 inches below the surface for each plant.

Lawns - New
Apply 10 lbs. per 100 sq. ft. Work lightly into the topsoil. Mix in grass seed and water well.

Lawns - Established
Distribute as top dress 10 lbs. per 100 sq. ft.

Casting Tea
Soak 1 part castings in 3 parts water for 12-24 hours. Stir well and water as usual. Casting tea is excellent for fruiting, flowering or difficult to access potted plants.

Compost Piles
Spread a thin layer of earthworm castings between each new layer of material to be composted.


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Unco Industries guarantees your satisfaction unconditionally. If for any reason you are not completely satisfied with the results provided by Wiggle Worm Soil Builder™, just write us a short note as to why and send it along with the remaining unused product. Include your full name and address, name and location of store where purchased, proof of purchase label from bag and dated cash register receipt. Send To: Unco Industries, 1577 11th Avenue, Union Grove, WI 53182. Important: Failure to enclose all of the above items will result in denial of your request. Limit 2 proofs of purchase to any individual, family or address. Void where prohibited or restricted by law. Allow 6-8 weeks for delivery.