
Intolerant of Frost: Plants are killed by frost and do not tolerate cold weather above freezing (plants grow best in the heat of summer). Plant as Transplants: tomato and summer squash (if transplanted with care). Plant as Seed Directly into the Garden: snap beans, dry beans, New Zealand spinach, summer squash, sweet corn. Intolerant of Frost: Plants are killed by frost but tolerate colder weather above freezing. Plant warm-loving plants 1-2 weeks after tender vegetables are planted. Warm-loving vegetables usually have one planting to last all season (an exception is lima beans with multiple plantings). Mother’s Day (second Sunday in May) is often used as a guideline in central Indiana on when to begin planting. Plant tender vegetables when danger of frost is past. Tender vegetables usually have one planting to last all season (exceptions are bush snap beans & sweet corn with multiple plantings). Warm-season vegetables do NOT tolerate frost and are classified as either Tender or Warm-loving. Warm-season vegetables grow best in warm weather. Plant as Transplants: cauliflower, celery, Swiss chard, Chinese cabbage, leaf lettuce, mustard. Plant as Seed Directly into the Garden: beet, carrot, Swiss chard, mustard, parsnip, radish. Cold Tolerant: Conditioned plants tolerate light frosts but are usually damaged by temperatures in the upper-20’s (F). Plant as Transplants: Asparagus, broccoli, Brussels sprouts, cabbage, collards, horseradish, leek, onion, potato (using seed potatoes), rhubarb. Plant as Seed Directly into the Garden: collards, kale, kohlrabi, lettuce, onion, peas, spinach, turnip. Very Cold Tolerant: Conditioned plants tolerate temperatures in mid-20’s (F) but are usually damaged by temperatures in the low-20’s.
Cool-season vegetables tolerate frost and are classified as either Very Hardy or Hardy. Planting often occurs in March-April and/or August-September.
They are often planted in spring to mature before the hot weather or in late summer to mature in the cooler fall weather. However, wait until the risk of frost is over in May before planting warm-season vegetables like tomatoes and peppers.Ĭool-season vegetables grow best in cool weather. Plant cool-season vegetables like spinach and carrots in March-April and/or August-September in central Indiana.