Last edited on 29 Nov 2025. View history
Soybean
How to sow soybean: Direct seed outdoors after last frost, thin to 30cm when seedlings are 4cm high
Sun requirement for soybean: Plant in Full Sun
Soybeans are a type of legume that can be grown for many uses. Soybeans are one of the major crops grown in the United States. Like all legumes, they benefit from an inoculant at planting. They can be harvested fresh or dried. Soybeans are used to make oil, feed livestock, grown as cover crops, or processed into foods like tofu and tempeh. When harvested in an immature state and boiled whole in their pods, soybeans are known as Edamame.
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- plantings
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- seed packets
Soybean facts
Lifespan
Height × spread
65cm × 55cmRow Spacing
30cmHow members grow soybeans
Sunniness
Planted from
Photos
PhotosSoybean crops
Video
Where soybeans grow
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What people are saying about soybeans
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Who's planted soybeans
- KalicoKali Garden · Vacaville, Ca
- Unalmas Garden · Somerville, MA
- twelvecups Party Garden
- oakandsage Garden · Santa Clarita, CA
KalicoKali
Soybean harvests
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- KalicoKali will trade internationally.
- pazinjanka will trade nationally.
- pazinjanka will trade locally.
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Ecological requirements
Data from the FAO EcoCrop database for Glycine max (L.) Merrill.
| Family / Taxonomy | Magnoliopsida Rosidae Fabales Leguminosae |
|---|---|
| Optimal temperature | 20 - 33 °C |
| Absolute temperature | 10 - 38 °C |
| Optimal rainfall | 600 - 1500 mm/year |
| Absolute rainfall | 450 - 1800 mm/year |
| Optimal soil pH | 5.5 - 6.5 |
| Absolute soil pH | 4.5 - 8.4 |
| Crop cycle | 75 - 180 days |
| Max altitude | 3000 m |
| Life form | herb |
| Life span | annual |
| Habit | erect |
| Optimal soil depth | medium (50-150 cm) |
| Optimal soil texture | medium, organic |
| Optimal soil fertility | high |
| Optimal soil drainage | well (dry spells) |
| Optimal soil salinity | low (<4 dS/m) |
| Photoperiod | short day (<12 hours) |
| Optimal light | very bright |
Learn more about soybeans
Resources outside Growstuff.
