Should you turn rye grass into the soil in the fall or spring? What other cover crops are recommended?

Question: I use annual rye grass as a green manure in my vegetable garden. Should I turn it into the soil in the fall or in the spring?  What other cover crops are recommended for vegetable gardens? Answer: Pamela Hargest, Horticulture Professional If annual ryegrass is sown in the fall, then it can be incorporated read more Should you turn rye grass into the soil in the fall or spring? What other cover crops are recommended?