Biologically Complete Worm Castings

Our biologically complete worm castings are a highly valuable soil amendment, with unique properties not found in other forms of compost. This product can significantly boost the biology in your soil and support the long-term health of your plants.

Use For:

• Potting mixes
• Transplants
• Top Dressing
• Extracts & Teas
• Seed Starting

Here at Pacific Composting we are biology-obsessed! Our own worm castings are crafted with care using a wide range of different earthworm foods and amendments to optimize the vermicomposting process and improve the quality of the end product.

Ongoing microscopic analysis is a key part of the process. Our castings are ‘biologically complete’, according to Soil Food Web standards.

100% safe for plants, pets and people!

Application Rates

Potting Mixes - Make potting mixes with 5-20% castings for best results. (A 5% potting mix would contain just over ¾ cup of castings per gallon of soil mix) 

Transplants & Top Dressing - Add a handful of castings down in the bottom of your planting holes or around the base of your garden plants (you can double these amounts for larger plants like shrubs and young trees). Make sure to keep your top-dressing moist with the help of mulches and regular watering.

Extracts & Teas - Use 1-3 lb of castings per 5 gallons (using 1 pound at a time) of dechlorinated water, ideally using a 400 micron mesh bag to allow all the beneficial biology through while blocking most of the solids. These liquid amendments can be further diluted to suit your particular needs. NOTE: 1 L of our worm castings should be close to 1 lb.

Seed Starting - If your seeds can handle a pre-soak, then you can use dilute extracts (5:1 or higher) to soak them prior to planting. 

HELPFUL TIPS

• Our Worm Castings are rich with life! Keep them out of direct sunlight and protected from precipitation and extreme heat and cold.
• The microbiology of castings will shift over time. Aim to use this product as soon as possible!
• If you use castings to make teas and extracts, these should be used almost immediately (especially in the case of teas with added microbial foods).
• Castings should be kept moist since this is critical for the well-being of your microorganisms. If you squeeze a handful tightly between your hands, you should see a drop of water appear between your fingers. 

Additional Helpful Resources

Biologically Complete Worm Castings (pdf product guide)
Compost Extract/Tea Bag (pdf product guide includes instructions for making extracts)
How to Use Worm Castings & Liquid Extracts
PC Resource Hub