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. Darrera gelada: May 1. Primera gelada: Oct 5.

Outdoor

Harvest

May 8Oct 5

Season: May 1 – Oct 5 (157 dies)

Zona4b

Darrera geladaMay 1

Primera geladaOct 5

Temporada157 dies

Collita110 dies

SolSol Ple

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

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

❌ Ceba❌ All

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