Worm Castings
Best Soil Amendment to Help Plants Thrive
Worm castings are a microbe-rich natural soil amendment created as a byproduct from earthworms consuming compostable matter. The castings contain microorganisms, nutrients and organic materials that help plants grow, improve yields and enrich soil without detrimental side effects.
The array of microorganisms in worm castings work slowly to continually release the nutrients that help your garden plants thrive. Unlike chemically treated fertilizers that support a single growing season, castings provide long term benefits for a garden and support healthy bacteria rich soil. Worm castings have low NPK values, but they are full of microorganisms that help convert nutrients that already exist in the soil into forms that plants use. Plus worm castings will not burn plant roots .
Uses for Worm Castings
As worm castings are odor-free, pet safe and will not burn plant roots they are perfect for all types of home gardening applications.
- Indoors
- Outdoors
- Potted Plants
- Raised Beds
- Built-in Gardens
- Seedlings
- New Plantings
- Existing Crops
- Flowers / Roses
- Lawns
- Citrus and Fruit Trees
Retain Moisture
Worm castings help retain moisture in garden soil which is a great benefit for Arizona gardeners. The structure of castings, which feel and look like coffee grounds, hold onto water and help prevent vital nutrients from being washed out of the soil.
Application Instructions
New Plantings and Seedlings
Make a mixture of 90% soil with 10% castings before adding new plants, then water. Even though castings will not burn the plants roots, a higher ratio of castings will not provide additional benefits.
Existing Crops
Apply 1/2 inch to 1 inch top coat of worm castings around existing plants. It is not necessary to mix the castings into the soil. Water immediately.
Flowers / Roses
Apply 1/2 inch of worm castings around planted flowers. Water immediately.
Lawns
Evenly distribute worm castings on top of existing summer and winter lawns at a rate of 1 gallon for every 250 square feet. Water immediately.
Citrus and Fruit Trees
In February, May and September, pull back existing mulch from the tree well of established trees. Add layers of 1 inch of worm castings and 2 inches of organic compost into the tree well. Replace existing mulch and cover with more as necessary. Water as normal.
