Royal Gold Earthworm Castings - 1cu ft

Royal Gold Worm Castings: 100% Castings, OMRI Listed, Rooted in Humboldt

This bag holds one thing only: earthworm castings, with no filler or added fertilizer mixed in. Royal Gold lists the ingredient line as 100% worm castings. The bag carries an OMRI Listed seal and CDFA registration as an organic input material. That matters when you grow under an organic certification or want inputs a certifier will sign off on. The material pours out dark brown to black, granular and earthy, with a pH of 6.0 to 7.0. Each bag is 1 cubic foot, which works out to 6.43 gallons or 28.32 liters of castings. Castings work on structure first. They add organic matter, open up aeration in tight soils and help a mix hold water between irrigations. Royal Gold rates the product non-burning, so it can sit close to seedlings and fresh transplants without the risk a hot fertilizer brings. The castings are bagged by Royal Gold in Humboldt County, California, alongside the brand's coco-based soils.

Using Organic Worm Castings in Containers, Beds and Compost Tea

For new container plantings, mix one part castings into five parts potting media. Move to one part in three when you want the mix to hold more water between waterings. On established houseplants and containers, top-dress up to an inch and scratch it lightly into the surface. Repeat that every two to three months. Outdoors, drop an inch of castings into each planting hole or furrow for vegetables and flowers. Perennials, shrubs and trees take a cup in the hole, and a large specimen can take up to five cups. Along an established row, side-dress about a cup per foot every month or two through the season. Lawns get the whole bag spread across roughly a thousand square feet at the start of the season. For tea, steep two cups in five gallons of non-chlorinated water for a day and apply it within the next day. An aerated brew at the same ratio runs up to a day and a half, and one bag holds enough for about fifty batches. The honest limit is feeding. Castings build the soil and support a fertilizer program, but heavy feeders still need their regular nutrients on top.

Key Features

• 100% Worm Castings: Nothing else is in the bag, so the castings blend into soil, coco or soilless mixes without changing your feed program.
• OMRI Listed and CDFA Registered: Both seals clear the castings for certified organic production as well as home organic gardening.
• Near-Neutral pH: The listed range sits close to neutral, so castings mix into most media without a pH correction.
• Non-Burning Organic Matter: Royal Gold rates it non-burning, so it can go right against seedlings, cuttings and new transplants.
• Fine Granular Texture: The dark granular castings spread evenly by hand, rake or fertilizer spreader across beds and lawns.
• Compost Tea Ready: Two cups per five-gallon batch works for both steeped extracts and aerated brews with most inoculants and sugar sources.
• Indoor to Outdoor: The bag is labeled for outdoor, greenhouse, houseplant and indoor use, so one product covers every growing space.

Technical Specifications