Growing Soybean in Zone 8b
Zone 8b has warm winters and an extended growing season — excellent for heat-loving crops like Soybean. Last frost: Mar 22. First frost: Nov 10.
Planting Calendar
Mar 29Nov 10
Season: Mar 22 – Nov 10 (233 days)
Zone8b
Last FrostMar 22
First FrostNov 10
Season Length233 days
Days to Harvest110
SunFull Sun
Frost ToleranceNone
Spacing4/sqft (6" apart)
When to Plant Soybean in Zone 8b
Sow Seeds Outdoors: Mar 29
Direct sow Soybean seeds outdoors around Mar 29. Soil temperature should be at least 60°F. Space at 4/sqft (6" apart).
Harvest: Jul 17
First harvest approximately Jul 17 (~110 days from planting). Continue harvesting until first frost (Nov 10).
Companion Planting
❌ Onion❌ Garlic
Soybean in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bPlan Your Soybean Garden
Track Soybean from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Soybean Growing Guide