Question: What kind of special soil preparation will I need to make for an asparagus bed?

Answer: You’ll have to work the soil much better than you would for other vegetables, because asparagus stays in the same soil for many years. Rototill to incorporate 6 to 8 inches of organic matter such as peat moss, compost, bark mulch and rotted manure into the soil. If you’re amending a clay soil, also include 1 inch of expanded shale as you rototill.