When should I plant Cilantro in Zone 3a?

Direct sow Cilantro outdoors around May 8. Harvest around Jun 7.

What is the last frost date for Zone 3a?

The average last spring frost date for Zone 3a is May 22. The first fall frost averages Sep 12, giving a 113-day growing season.

Can I grow Cilantro in Zone 3a?

Yes. Cilantro needs 30 days to harvest. Zone 3a has a 113-day growing season, which is sufficient. You can plant up to 5 successions.

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🌿 Growing Cilantro in Zone 3a

Zone 3a has harsh winters and a short growing season. Start Cilantro early indoors to maximize your harvest window. Last frost: May 22. First frost: Sep 12.

Planting Calendar

Outdoor

Harvest

May 8Sep 12

Season: May 22 – Sep 12 (113 days) · Succession: plant every 2 weeks (up to 5x)

Zone3a

Last FrostMay 22

First FrostSep 12

Season Length113 days

Days to Harvest30

SunPart Sun / Part Shade

Frost ToleranceLight

Spacing4/sqft (6" apart)

When to Plant Cilantro in Zone 3a

Sow Seeds Outdoors: May 8

Direct sow Cilantro seeds outdoors around May 8. Soil temperature should be at least 50°F. Space at 4/sqft (6" apart).

Harvest: Jun 7

First harvest approximately Jun 7 (~30 days from planting). Continue harvesting until first frost (Sep 12).

Fall Planting: Aug 1

For a fall harvest, plant Cilantro around Aug 1 (6 weeks before first frost).

Companion Planting

✅ Tomatoes✅ Peppers✅ Beans✅ Peas✅ Spinach

❌ Fennel❌ Dill

Cilantro 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

Plan Your Cilantro Garden

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

Start Free Cilantro Growing Guide