Companion Planting & Garden Value: Edamame (Soybean)
Glycine max
Spacing: 4 per square foot. Mature height: 2-3 ft.
Plant these nearby
- Sweet Corn: Classic legume/grain pairing. Soybean fixes nitrogen that heavy-feeding corn uses.
Keep these apart
- Onion: Alliums are traditionally kept off legume beds on the theory that they inhibit nitrogen-fixing bacteria, but WSU Extension's review of companion-planting research found no scientific basis for that specific mechanism: treat this as garden tradition, not measured evidence. (source)
- Garlic: Alliums are traditionally kept off legume beds on the theory that they inhibit nitrogen-fixing bacteria, but WSU Extension's review of companion-planting research found no scientific basis for that specific mechanism: treat this as garden tradition, not measured evidence. (source)
Common pairings, answered directly
- Can I plant edamame (soybean) next to sweet corn?
- Yes. Classic legume/grain pairing. Soybean fixes nitrogen that heavy-feeding corn uses.
- Can I plant edamame (soybean) next to onion?
- Better not to. Alliums are traditionally kept off legume beds on the theory that they inhibit nitrogen-fixing bacteria, but WSU Extension's review of companion-planting research found no scientific basis for that specific mechanism: treat this as garden tradition, not measured evidence.
- Can I plant edamame (soybean) next to garlic?
- Better not to. Alliums are traditionally kept off legume beds on the theory that they inhibit nitrogen-fixing bacteria, but WSU Extension's review of companion-planting research found no scientific basis for that specific mechanism: treat this as garden tradition, not measured evidence.
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Companion planting for Edamame (Soybean): which plants to grow next to it, which to keep apart, and the reason behind each pairing.
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