Worm Castings


Worm castings (also called worm compost or vermicompost) are a great natural fertilizer, and a very clean and easy to handle plant food. They don’t need to be applied liberally, just a handful goes a long way, and they can be turned into liquid fertilizer after soaking them. If they are kept moist under a plant’s roots or used as a topping around the base, they can help anyone maintain a solid green thumb. We sell worm castings at Shadyside Nursery throughout the spring, summer, and fall.

PRICE:               $2 per pound 

Worm castings that are used as a solid fertilizer are commonly used one of two ways to fertilize a plant:

  • In the dirt– By mixing a handful of castings(large or small depending on the type of plant) in your garden soil or growing medium you will provide a good deal of macro- and micro-nutrients for the plant. Equally important are the dozens of common fungi and living organisms found in worm castings.
  • Topical- If you already have your plants in the ground or in pots, you can put a small amount of castings on top of the soil around the plant’s base, a few inches away from the stem, and as you water the plants, or rain falls, the nutrients in the castings will soak down into the soil and into the roots. Add some mulch over top of them and you can keep them moist for longer lasting fertilizer and a healthy organic layer in your garden.

[Any time you use worm castings, they can be cut with regular potting soil or top soil to a ratio anywhere from 1:5 to 1:8. This is a great way to enrich your soil.]

BYOB   [Bring your own Bucket!]

We really don’t like packaging, especially not these worm castings that are rich with living microbial content. Please feel free to bring your own container to weigh out what you need!




A third way to use worm castings, is to transform them into a potent liquid fertilizer.

One pound of worm castings in One gallon of water will go a long way to fertilize your plants

One pound of worm castings in One gallon of water will go a long way to fertilize your plants

In the following video you will notice that Harvard University has taken the initiative to use compost tea as an amendment for their grasses. There is a lot being said and implied in this video, but if you understand the intention of the university to switch to non-chemical fertilizers, then you are taking away at least one prominent message and accomplishment.

We support the use of organic fertilizers such as compost tea because of the very current threat of non-point source pollution in these beautiful three rivers. If you would like to know more about our worm castings, we would be happy to provide you with a soil report from the Penn State Agricultural Extension.

I appreciate this video because it focuses on root development in the grass. There is still a lot to be learned about using compost tea as a pesticide or fungicide spray for foliage, although most gardeners will tell you that they have had luck with various methods. We share this experience, and encourage you to join in the use of compost tea in your garden or yard and help understand the benefits of compost tea.

If you are interested in learning more, please contact us and we can help you understand the benefits of compost tea. We also recommend checking out another awesome composting company in the area that specializes in lawn care and compost teas. Check ’em out!



If you are a non-profit or volunteer based organization and you are in need of donated organic fertilizer for your garden, please fill out the form below and we will try to connect you to one of our compost exchange customers that will be donating their exchange.

Some of our customers have 20-60lbs of worm compost fertilizer available to donate, and they want to hear from you so they know what to do with their dirt! Our fertilizer goes a long way and it can be applied throughout the spring and summer. So if you are planning a workshop, a gardening program, or just need to give your community garden a boost, give us a shot and hopefully we can help out.

If we can’t fill your request then we will contact you to let you know what we can offer.

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