Earthworms help create humus—a dark brown-black type of soil which holds important nutrients in place for plant growth and use. Earthworms also help create good soil structure; their burrows open up the soil and create aeration and drainage channels. Earthworm castings or excrement are rich in nitrogen, phosphorous, and potassium the key minerals needed for […] More
Clay soils are too wet or too dry, slow to drain, slow to warm in the spring, and slow to release nutrients to plant roots. The best way to improve clay soil is to add several inches of organic matter such as aged compost to planting beds regularly—at least twice a year–and work it into […] More
Wood ash from a fireplace or woodstove can be a good source of plant nutrients calcium, potassium, and phosphorus in the garden. Wood ash is alkaline—about half as alkaline as lime—so it can be used to balance acid soil, but it should not be used on alkaline soils—as found in most of the western United […] More
Stephen Albert