Herb

When to Plant Cilantro in Ohio

You either love it or your genetics say no. For the cilantro lovers, it's an essential herb that bolts fast in heat.

The Short Answer

Cilantro is Ohio's most ephemeral herb — it grows fast, bolts fast, and if you blink, you've got coriander seeds instead of cilantro leaves. The key to continuous cilantro in Ohio is relentless succession planting and accepting that each planting has a 4-6 week productive window.

Ohio Frost Dates

Your planting dates depend on which part of Ohio you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Northern Ohio 5b, 6a May 1 - May 15 Oct 1 - Oct 15
Central Ohio 6a, 6b Apr 20 - May 5 Oct 10 - Oct 25
Southern Ohio 6b Apr 15 - Apr 30 Oct 15 - Oct 30

Cilantro Planting Schedule for Ohio

Northern Ohio (Zones 5b, 6a)

Average last frost: May 1 - May 15 · Average first frost: Oct 1 - Oct 15

Direct Sow
2 wks before frost
Fall Planting
6 wks before first frost

Central Ohio (Zones 6a, 6b)

Average last frost: Apr 20 - May 5 · Average first frost: Oct 10 - Oct 25

Direct Sow
2 wks before frost
Fall Planting
6 wks before first frost

Southern Ohio (Zones 6b)

Average last frost: Apr 15 - Apr 30 · Average first frost: Oct 15 - Oct 30

Direct Sow
2 wks before frost
Fall Planting
6 wks before first frost

Growing Cilantro in Ohio

State-Specific Growing Tips

Direct sow 2 weeks before last frost (early April). Succession plant every 3 weeks through May. Resume in August for fall harvest. Ohio's spring cool weather is cilantro's sweet spot — the herb bolts rapidly once temperatures consistently exceed 80°F. Partial shade extends the spring season slightly. Let some plants bolt to produce coriander seeds (a spice in their own right) and to self-seed for volunteer plants.

Recommended Varieties for Ohio

Santo and Calypso (slow-bolt). Delfino (ferny foliage). Standard cilantro for coriander seed.

Common Challenges in Ohio

Bolting is inevitable — succession planting is the only reliable solution. Aphids on new growth. Cilantro's shallow roots make it drought-sensitive.

Growing Tips

Bolts quickly in heat — succession plant every 3 weeks and grow in partial shade during summer. Let some bolt for coriander seeds.

Companion Planting

Plant cilantro alongside these companions for better growth:

Beans Peas Tomatoes

Keep cilantro away from:

Fennel

The Bottom Line

Cilantro can be grown successfully in Ohio with proper attention to regional frost dates and local growing conditions. Timing varies across the state — Northern Ohio gardeners work with a last frost around May 1 - May 15, while Southern Ohio sees frost end around Apr 15 - Apr 30. Choose varieties suited to your region, amend your soil based on its specific needs, and monitor for the pests and diseases most common in your area. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Cilantro Growing Guide National planting guide with all states Ohio Planting Calendar All plants for Ohio Cilantro in Alabama Alabama planting dates Cilantro in Alaska Alaska planting dates Cilantro in Arizona Arizona planting dates Cilantro in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

Ready to Start Planting?

Enter your zip code and pick your plant. We'll tell you exactly when to plant, start seeds, and harvest — based on where you live.

Find Your Planting Dates