Worm Kaster's worm castings are unlike chemical fertilizers that can burn tender roots. Worm castings are an organic fertilizer that are safe to use at any concentration. Organic gardeners rely on this method of fertilizing because its organic nutrients balance the soil's PH and help to retain the soil's moisture. Worm Castings also provide you with an excellent organic insect and disease repellent.
 
Plants love the fertilizing benifits that come from organic worm castings! Along with many other trace elements and micro-nutrients, castings have 5 to 11 times more nitrogen, potassium, calcium, phosphorus, potash, and magnesium than topsoil.
 
The minerals are water-soluble and time-released. So, they are easily available to the plant when the plant needs them, both immediately and long-term.

Your worm castings should not be stored in direct sunlight. Worm castings are a live product and storing them in the sun will reduce the amount of beneficial bacteria and microorganisms found in worm castings, which will reduce the worm castings benefits.

Even though our worm castings are of the purest form available and we do feed our worms peat, it is possible for a weed seed to find its way through the harvesting process from time to time.

The following links provide more information about worm castings.