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🌽 Growing Corn in Zone 1b

Zone 1b has harsh winters and a short growing season. Start Corn early indoors to maximize your harvest window. Last frost: May 25. First frost: Aug 28.

Planting Calendar

Outdoor

Harvest

Jun 1Aug 28

Season: May 25 – Aug 28 (95 days)

Zone1b

Last FrostMay 25

First FrostAug 28

Season Length95 days

Days to Harvest85

SunFull Sun

Frost ToleranceNone

Spacing4/sqft (6" apart)

When to Plant Corn in Zone 1b

Sow Seeds Outdoors: Jun 1

Direct sow Corn seeds outdoors around Jun 1. Soil temperature should be at least 60°F. Space at 4/sqft (6" apart).

Harvest: Aug 25

First harvest approximately Aug 25 (~85 days from planting). Continue harvesting until first frost (Aug 28).

Companion Planting

✅ Beans✅ Squash✅ Cucumbers✅ Peas✅ Pumpkins

❌ Tomatoes

Corn in Other Zones

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

Frequently Asked Questions

When should I plant Corn in Zone 1b?

Direct sow Corn outdoors around Jun 1. Harvest around Aug 25.

What is the last frost date for Zone 1b?

The average last spring frost date for Zone 1b is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Corn in Zone 1b?

Yes. Corn needs 85 days to harvest. Zone 1b has a 95-day growing season, which is sufficient.

What is the best month to plant Corn in Zone 1b?

The best time to plant Corn in Zone 1b is around Jun 1, when soil temperatures are suitable and frost risk has passed.

What companion plants grow well with Corn?

Good companion plants for Corn include Beans, Squash, Cucumbers, Peas, Pumpkins. Avoid planting Corn near Tomatoes.

How long does Corn take to harvest?

Corn takes approximately 85 days from planting to harvest. In Zone 1b, expect your first harvest around Aug 25.

Plan Your Corn Garden

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

Start Free Corn Growing Guide