The best tomatoes to grow in cool or cold climates are short- to mid-season tomatoes—that is tomatoes that mature in the shortest number of days, 55 to about 75 days from transplanting. Short- and mid-season tomato varieties commonly require fewer days of heat to ripen fruit and are naturally adapted or have been developed for cool
Sweet potato cutting or slip roots in water. Sweet potatoes are a warm-weather crop. They require a long, hot growing season. Sweet potatoes are grown from rooted cuttings, called “slips” or “draws”. Slips are best started indoors from sweet potato tubers. Slips stated indoors take about 12 weeks to reach transplant size. Transplant sweet potato
Cover crops such as buckwheat can be turned under after flowering to become a soil-building green manure. Cover crop, green manure crop, and catch crop are three interchangeable terms to describe crops that feed, build, and protect the soil and attract and feed beneficial insects and soil microorganisms. Cover crops are planted to cover planting
Zucchini seedling Summer squashes are tender, warm-weather crops. Summer squashes include crookneck, pattypan, straightneck, scallop, vegetable marrow, and zucchini. Sow summer squash indoors 4 to 3 weeks before the last expected frost in spring. Sow summer squash outdoors when the soil temperature has warmed to 70°F (21°C). Protect squash in the garden from cool temperatures
Rutabaga is a cool-weather crop. Sow rutabaga seed in late winter or very early spring for an early summer harvest. Direct sow seed in the garden 16 to 10 weeks before the last frost in spring. In warm regions, it’s best to sow rutabaga in mid-summer for a fall and winter harvest and use. Rutabagas
Start tomatillo seed 6 to 8 weeks before you intend to set plants out in the garden. Tomatillos are a tender, warm-weather crop. Start tomatillos indoors 8 to 6 weeks before the average last frost date. Transplant seedlings into the garden two weeks after the last frost just as you would peppers and tomatoes. Tomatillos
Plant artichoke root divisions or “crowns” in late winter if the soil is easily worked or early spring about 2 weeks before the last frost. Artichokes are perennial plants. Artichokes prefer cool, moist summers and mild winters. The perennial artichoke plant will not survive where the ground freezes. Artichokes can be grown from seed or
Asparagus sprouts Asparagus is a perennial plant. Plant asparagus where it can grow undisturbed and be productive for 15 to 20 years. Asparagus is one of the earliest crops to come to harvest in spring. The edible parts of the asparagus plant are young, tender, green shoots, called spears. Spears are young leaf stalks—eaten leafless—that
Garlic planting Garlic is grown from cloves formed in bulbs. Cloves used to start new plants are called “seed cloves”. Seed clove size is important to yield. The yield of a large clove is usually greater than a medium-size clove, which, in turn, is usually greater than a small-size clove. The largest cloves commonly produce
Tomato seedlings Tomatoes are a tender, warm-weather crop. Start tomatoes indoors 10 to 8 weeks before the last expected frost in spring. Set tomato seedlings into the garden after all danger of frost is past. There are more than 1,000 varieties of tomatoes—most are red, others are pink-orange, yellow, purple, brown, whitish-green, or striped. Best
