Common Vegetable Seed Germination Temperatures

This chat shows soil temperature and germination days of common vegetable seeds. Seeds will germinate in soil with temperatures between minimum and maximum. Please note that there are also other factors including seed vitality, moisture, soil oxygen.
Crop Germination Minimum Soil Temperature (°F) Germination Optimum Soil Temperature Range(°F) Germination Maximum Soil Temperature (°F) Days to Germination at Optimal Temps
Asparagus 50 60-85 95 14-18
Bean, lima 60 75-85 85 4-10
Bean, snap 60 75-85 95 4-10
Beet 40 60-85 95 4-10
Broccoli 40 60-85 95 7-10
Brussels sprouts 40 60-85 95 3-10
Cabbage 40 60-85 95 5-10
Carrot 40 65-85 95 6
Cauliflower 40 65-85 95 4-10
Celery 40 60-70 95 10
Chinese cabbage 40 60-85 95 4-10
Collards 40 60-85 95 5-10
Corn 50 65-95 105 4-10
Cucumber 60 65-95 105 5-7
Eggplant 60 75-85 95 10-15
Endive/Escarole 35 60-75 85 10-14
Garlic 35 65-85 95 7-14
Kale 40 60-85 95 5-7
Kohlrabi 40 60-95 105 5-10
Leeks 35 65-85 95 8-16
Lettuce 35 60-75 85 2-10
Muskmelon 60 75-95 105 4-10
Mustard 35 60-75 85 4-6
Okra 60 85-95 105 7-12
Onion 35 65-85 95 4-12
Parsley 40 65-85 95 5-6 weeks
Parsnip 35 65-75 85 5-28
Pea 40 65-75 85 5-7
Pepper 60 65-75 95 7-10
Pumpkin 60 85-95 105 4-10
Radicchio 35 60-75 85 5-7
Radish 40 65-85 95 4-10
Spinach 35 65-75 75 6-14
Squash 60 85-95 105 7-10
Swiss chard 40 65-85 95 7
Tomato 50 65-85 95 5-7
Turnip 40 60-95 105 3-10
Watermelon 60 70-95 105 4-10
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