I sowed annual crimson clover (Trifolium incarnatum ... mixing clover with lawn in freezing regions. It is best to seed the clover lawn in the early spring once the chance of frost has passed.

With sowing seeds directly outdoors ... Best sown before first hard frost. Try crimson clover, red clover, and arrowleaf clover. You can mix them with a bit of sand for easier casting.

Researchers across the country are working to develop cover crop varieties that better suit regional environments. University ...