When should I plant Soybean in Zone 4a?

Direct sow Soybean outdoors around May 12. Expect first harvest around Aug 30.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Yes. Soybean needs 110 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

Zone 4a has cold winters and a moderate growing season. Timing is key for Soybean in this zone. Siste frost: May 5. Første frost: Oct 1.

Outdoor

Harvest

May 12Oct 1

Season: May 5 – Oct 1 (149 dager)

Sone4a

Siste frostMay 5

Første frostOct 1

Sesong149 dager

Høst110 dager

SolFull Sol

Direct sow Soybean seeds outdoors around May 12. Wait until soil temperature reaches 60F. Space plants at 4/m² (15cm avstand).

First harvest approximately Aug 30 (~110 dager from planting). Continue harvesting until first frost (Oct 1).

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