When should I plant Soybean in Zone 4b?

Direct sow Soybean outdoors around 5月8日. Expect first harvest around 8月26日.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is 5月1日. The first fall frost averages 10月5日, giving a 157-day growing season.

Yes. Soybean needs 110 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

Zone 4b has cold winters and a moderate growing season. Timing is key for Soybean in this zone. 末次霜冻: 5月1日. 初次霜冻: 10月5日.

Outdoor

Harvest

5月8日10月5日

Season: 5月1日 – 10月5日 (157 天)

区域4b

末次霜冻5月1日

初次霜冻10月5日

生长季157 天

收获110 天

日照全日照

Direct sow Soybean seeds outdoors around 5月8日. Wait until soil temperature reaches 60F. Space plants at 4/m² (15cm 间距).

First harvest approximately 8月26日 (~110 天 from planting). Continue harvesting until first frost (10月5日).

❌ 洋葱❌ 大蒜

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Track Soybean from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.