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. Τελευταίος παγετός: May 5. Πρώτος παγετός: Oct 1.

Outdoor

Harvest

May 12Oct 1

Season: May 5 – Oct 1 (149 ημέρες)

Ζώνη4a

Τελευταίος παγετόςMay 5

Πρώτος παγετόςOct 1

Περίοδος149 ημέρες

Συγκομιδή110 ημέρες

ΉλιοςΠλήρης Ήλιος

Direct sow Soybean seeds outdoors around May 12. Wait until soil temperature reaches 60F. Space plants at 4/μ² (15cm απόσταση).

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

❌ Κρεμμύδι❌ Σκόρδο

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