Grow & Learn
Garden soybean planner
Enter your rows or pots and a planting date. Get seeds to buy, spacing and the dates to watch for — then print your plan.
Your planting
Days to maturity is on the seed packet. Edamame is often 75–100; dry soybeans 100–130.
–Seeds to sow (with ~10% extra)
–Approximate seed to buy
–Plants after thinning
–Spacing
–Sprouts expected
–Harvest window
How the planner works
- Rows: seeds are sown 2 inches apart and thinned to 4 inches, so each foot of row holds about 3 plants.
- Pots: 4 seeds per pot, thinned to the strongest 3.
- Seed to buy uses about 100 seeds per ounce for large-seeded edamame and about 175 per ounce for dry soybeans. Seed size varies a lot by variety, so check the packet.
- Harvest window: edamame from about 5 days before to 7 days after the packet's days to maturity; dry beans from maturity to about 3 weeks later, once pods rattle.
New to growing soybeans? Read the full home and school growing guide. Planting a bigger demo plot? The farm seeding rate calculator works in seeds per acre.