Soybean Growing Guide
Fabaceae family
Days to Harvest110 days
SunlightFull Sun
Frost ToleranceNone
Spacing4/sqft (6" apart)
Germination5-10 days
HardinessTender
Germ. Temp80°F
Companion Planting
Growth Stages
- Seedling
- Vegetative / Climbing
- Flowering
- Pod Filling / Harvest Ready
Planting Dates by Zone
| Zone | Start Indoors | Transplant | Direct Sow | Harvest |
|---|---|---|---|---|
| Zone 1a | — | — | Jun 1 | Sep 19 |
| Zone 1b | — | — | Jun 1 | Sep 19 |
| Zone 2a | — | — | May 22 | Sep 9 |
| Zone 2b | — | — | Jun 1 | Sep 19 |
| Zone 3a | — | — | May 29 | Sep 16 |
| Zone 3b | — | — | May 22 | Sep 9 |
| Zone 4a | — | — | May 12 | Aug 30 |
| Zone 4b | — | — | May 8 | Aug 26 |
| Zone 5a | — | — | May 5 | Aug 23 |
| Zone 5b | — | — | May 5 | Aug 23 |
| Zone 6a | — | — | May 5 | Aug 23 |
| Zone 6b | — | — | Apr 22 | Aug 10 |
| Zone 7a | — | — | Apr 22 | Aug 10 |
| Zone 7b | — | — | Apr 17 | Aug 5 |
| Zone 8a | — | — | Apr 12 | Jul 31 |
| Zone 8b | — | — | Mar 29 | Jul 17 |
| Zone 9a | — | — | Mar 27 | Jul 15 |
| Zone 9b | — | — | Mar 17 | Jul 5 |
| Zone 10a | — | — | Feb 27 | Jun 17 |
| Zone 10b | — | — | Feb 4 | May 25 |
| Zone 11a | — | — | Feb 4 | May 25 |
| Zone 11b | — | — | Jan 22 | May 12 |
| Zone 12a | — | — | Jan 8 | Apr 28 |
| Zone 12b | — | — | Jan 8 | Apr 28 |
| Zone 13a | — | — | Jan 8 | Apr 28 |
| Zone 13b | — | — | Jan 8 | Apr 28 |
Frequently Asked Questions
How long does it take to grow Soybean?
Soybean takes approximately 110 days from planting to harvest.
How much sun does Soybean need?
Soybean requires full sun (6+ hours direct sunlight per day).
How far apart should I plant Soybean?
Plant Soybean at 4/sqft (6" apart) using square foot gardening spacing.
Can Soybean survive frost?
Soybean is frost-sensitive and should not be exposed to frost.
What are good companion plants for Soybean?
Good companion plants for Soybean include Corn, Squash, Sesame. Avoid planting near Onion, Garlic.
How long does Soybean take to germinate?
Soybean seeds germinate in 5-10 days at an optimal temperature of 80°F.
Plan Your Soybean Garden
Track Soybean from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
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