When should I plant Soybean in Zone 4b?

Direct sow Soybean outdoors around May 8. Expect first harvest around Aug 26.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, 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. Viimeinen halla: May 1. Ensimmäinen halla: Oct 5.

Outdoor

Harvest

May 8Oct 5

Season: May 1 – Oct 5 (157 päivää)

Vyöhyke4b

Viimeinen hallaMay 1

Ensimmäinen hallaOct 5

Kausi157 päivää

Sato110 päivää

AurinkoTäysi Aurinko

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

First harvest approximately Aug 26 (~110 päivää from planting). Continue harvesting until first frost (Oct 5).

❌ Sipuli❌ Valkosipuli

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

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