Organic Earthworm Castings

We are very grateful for your support during our product launch and startup in this first of many growing seasons ahead.  We have been very busy developing our products for both home growers and commercial growers and we would like to introduce our new products/systems which have been successful in trials during this past season.

Our pure worm castings are always consistent with the same high quality, and we have grown our production to be able to serve a larger local commercial grower market.

  • Available in bulk bags weighing 1000-2000 lbs (1-2 cubic yards).
  • Nutrient analysis has confirmed excellent micro and macro nutrient content.
  • Microscopic analysis has confirmed potential for excellent active biology.
  • Your customers have been introduced to the benefits of our castings, and they will support your efforts to start their plants in these same castings.
  • Existing customers (Greenhouse/Nursery and High Tunnel Growers) have proven results.
  • Shelf life is not an issue when stored in good conditions.
  • Seed germination results have been great with growers.
  • We recommend the use of our castings blended at a ratio of 4-1 with your potting soil for transplant.

After your plants have started in your blended mix, we are able to provide liquid extract for drenching in 55 gallon drums or 250 gallon IBC totes, and smaller sizes as required.

  • This product enhances and accelerates the active biology in the blended soil.
  • Can be used at high dilution rates through your existing nutrient injection system.
  • Assist plants to fight disease.
  • Our liquid extract is made to order and has limited shelf life.

We are also able to provide you with castings tea for foliar spraying.

  • Available in 5 gallon buckets – can be diluted 10-1 with fresh clean water.
  • This easy-to-use system will enhance plant vitality and resistance to environmental stressors.
  • Made to order for same day usage to maintain optimal microbial life.
  • Operate your own brewing system to enable you to produce castings tea in your facility and apply this tea through existing foliar spray equipment.  A simple 5 gallon brewing system can yield a usable product in 24 hrs and this can be diluted with clean fresh water and applied through your existing greenhouse sprayers, saving costs.

We have been researching specialized application equipment such as tea brewers, drop spreaders, greenhouse sprayers, deep root injectors, and can assist with sourcing equipment for growers who need just the right equipment for the job.

In summary we are offering a complete system for commercial growers which includes:

  • Bulk Castings to be blended with your soil for both germination and after transplant.
  • Liquid extract for drenching to activate and accelerate biology and enhance growth.
  • Castings tea and brewing systems for foliar spraying enable you to produce, manage, and apply these products cost effectively, using our rehydrated castings.
  • Application equipment and services may be considered.

Please ask us to visit with you to evaluate your systems and make a professional proposal for commercial applications of our product systems for the rest of this current season or for the upcoming year ahead.

We have engaged Salem Soil Solutions, a Soil Food Web certified microbiologist to evaluate our products, and they have found as follows:

Summary & Recommendations

The analysis demonstrates that Greenleaf Farm’s castings have the potential to deliver excellent active biology, but moisture content is critical to realizing that potential. We recommend:

Rehydrating worm castings to ~50% moisture and allowing them to rest/mature for 1–3 weeks before use in extraction equipment.

Recognizing that solid castings can introduce beneficial organisms to soil, but depending on substrate moisture, these organisms may not become active immediately. Once hydrated, they will move and proliferate.

We thank you for your support. You are already managing a great successful business. We can help you add cost effective soil biology based systems and methods to your growing systems.