Used coffee grounds are a light soil conditioner, not a fertilizer; eggshells are a slow calcium source; most vegetable scraps should be composted, not buried raw. Pet-safe tips included.
Tag: Soil Amendment
soil-compost
Oct 28, 2026
What to Add to Clay Soil (and How Long It Takes to Improve)
The best thing to add to clay soil is organic matter such as compost, added yearly; gypsum only helps sodic clay, and fine sand makes clay worse. Expect the top layer to improve in one season and real structure in two to three years.