Soil

Kansas gardeners and farmers work with two distinct cover-crop windows tied to frost risk: warm-season species go in after the last spring frost clears…

Sow fall cover crops in Iowa from late August into October, and sow spring ones once the soil is workable in April.

Sow cover crops in Maine by counting back from the first fall freeze, not by a fixed date on the calendar.

Louisiana has two sowing windows, not one. Winter cover crops go in during fall, once the worst of the heat breaks, and well ahead of a freeze that may…

Kentucky’s sowing windows hang on two frost bands. Summer cover crops that die at frost go in after the last spring frost, and winter cover crops go in…

Indiana gardeners have two sowing windows for cover crops: late summer into early fall, ahead of the first 32°F freeze, and early spring, once the soil…

In Illinois, fall cover crops go in before the first fall frost, which at the Chicago reference station lands between October 24 and November 3.

In Idaho, sow frost-hardy cover crops from late summer into early fall, ahead of the first hard freeze, and sow frost-tender ones in spring once the last…

Sow cover crops in Hawaii whenever you can count on moisture, which in the lowlands means almost any month. There is no frost date to wait for.

Georgia has two sowing seasons for cover crops. Winter covers go in during fall, ahead of the first hard freeze.