Wiggle Worm Castings in a 15 lb Bag
This bag holds 15 lb of pure earthworm castings sold under the Wiggle Worm Soil Builder name. The worms are nightcrawlers fed on a rich peat humus that carries a wide spread of minerals and trace elements. As that material passes through the worm, it comes out as a fine, dark humus that plants take up easily. The guaranteed analysis is 1-0-0, with 1% calcium and 0.2% iron. Most of that nitrogen, 0.9%, is water-insoluble, so it releases slowly as soil life breaks it down. The remaining 0.1% is water-soluble and available right away. The castings are OMRI listed and CDFA registered for organic growing. They are also non-burning, so a heavy hand in a pot won't scorch roots the way a salt fertilizer can. The 15 lb size suits container gardens, houseplant collections and a few raised beds. The bag measures about 17 x 13.2 x 3.4 in, small enough to store on a shelf in the grow room.
Using Earthworm Castings in Pots and Beds
Earthworm castings work best mixed through the root zone rather than left on top. For containers, blend them in at roughly 20 to 25% of the potting mix by volume. When transplanting, line the planting hole with a handful so new roots grow straight into it. Top-dress established pots with an inch or two every couple of months, scratch it in lightly and water. Vegetable beds take about half a cup per plant as a side dressing during active growth. Living soil growers often fold castings into each recycle of the bed between runs. For a quick tea, soak one part castings in three parts water for 12 to 24 hours. Strain it and use it the same day, before it starts to sour. Keep the bag closed and slightly moist so the castings don't dry into a hard crust.
Key Features
- 15 lb Bag: Sized for containers, houseplants and small raised beds.
- Pure Earthworm Castings: Nightcrawlers fed on a mineral-rich peat humus.
- 1-0-0 With Ca and Fe: 1% nitrogen, 1% calcium and 0.2% iron.
- Slow and Fast Nitrogen: 0.9% slow-release plus 0.1% water-soluble.
- OMRI Listed: Registered for organic growing, CDFA certified.
- Non-Burning: Safe at heavy rates around tender roots.
Technical Specifications
| Specification | Value |
|---|---|
| Item number | 720425 |
| Hydrofarm part number | GMWW15 |
| Bag size | 15 lb |
| Guaranteed analysis | 1-0-0 |
| Total nitrogen | 1% (0.1% water soluble, 0.9% water insoluble) |
| Calcium | 1% |
| Iron | 0.2% |
| Derived from | Earthworm castings |
| Certification | OMRI listed, CDFA registered organic |
| Bag dimensions | 17 x 13.2 x 3.4 in |
| UPC | 090147135987 |