Soybean Seeds,
Chiba Green

Plant Chiba Green soybeans in the spring after all danger of frost has passed. The soil should be warm, at least 60 F, ideally 65-90 F, for optimal germination and growth. In cooler regions, start seeds indoors no more than 2-3 weeks before the last frost in deep or biodegradable pots, and transplant carefully after hardening off - soybeans resent root disturbance. If you're not sure how to find your area's first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

Plant seeds 1-2 inches deep and space them about 6 inches apart in rows 18-24 inches apart. Ensure the soil is well-drained and enriched with organic matter. If starting indoors, use biodegradable pots to reduce root disturbance during transplanting. Harden off seedlings before planting them outside.

Keep the soil consistently moist but not waterlogged. Enrich the soil with compost at planting and again mid-season. Avoid nitrogen-rich fertilizers as soybeans fix their own nitrogen​. Monitor for pests like aphids and Mexican bean beetles, and use organic control methods such as neem oil or insecticidal soap if necessary​​.

• This annual self-pollinating crop will not readily cross with other soybean varieties. However, a distance of 10-20 feet between different soybean varieties will really ensure purity.
• Allow pods to brown and dry on the plant.
• If frost or wet weather is expected, pull plants and hang indoors in a warm, dry location until seeds are fully dry.
• Test with your fingernail; seeds that can't be dented are mature enough to store.
• Store in a cool, dark, dry location.