When should I plant 옥수수 in Zone 4a?

Direct sow 옥수수 outdoors around 5월 12일. Expect first harvest around 8월 5일.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is 5월 5일. The first fall frost averages 10월 1일, giving a 149-day growing season.

Yes. 옥수수 needs 85 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 4 successions.

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Zone 4a has cold winters and a moderate growing season. Timing is key for 옥수수 in this zone. 마지막 서리: 5월 5일. 첫 서리: 10월 1일.

Outdoor

Harvest

5월 12일10월 1일

Season: 5월 5일 – 10월 1일 (149 일) · Succession: plant every 2 weeks (up to 4x)

구역4a

마지막 서리5월 5일

첫 서리10월 1일

시즌149 일

수확85 일

일조전일조

Direct sow 옥수수 seeds outdoors around 5월 12일. Wait until soil temperature reaches 60F. Space plants at 4/m² (15cm 간격).

First harvest approximately 8월 5일 (~85 일 from planting). Continue harvesting until first frost (10월 1일).

✅ 콩✅ 호박✅ 오이✅ 완두콩✅ 호박

❌ 토마토

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