When to plant · 31 cities · zones 6a–7a
When to plant cilantro in Ohio
Direct sow cilantro around Apr 10 — the Ohio statewide median, counted from a last spring frost of Apr 24 across 1,178 ZIP codes and 140 NOAA stations.
The rule: Direct sow in 60–70 °F soil, a short row every two weeks from four weeks before the last frost until the heat arrives, then again from late summer.
Ohio cilantro, by step
Statewide median last frost Apr 24, first fall frost Oct 22, 2027 season. Each cultivar's own indoor lead time and days to maturity, same engine as the Plan Builder.
| Cultivar | Start indoors | Sow | First harvest | Days |
|---|---|---|---|---|
| CilantroSlow Bolt (Coriandrum sativum) | Direct sow | Apr 10 | May 25 | 45 from sow |
Tight means first harvest lands within two weeks of the median first fall frost. Statewide dates are the ZIP-weighted median of every NOAA 1991–2020 station Ohio's ZIP codes resolve to.
Cilantro in Ohio, city by city
Cilantro, scheduled from each city's nearest NOAA station — the same dates as its frost page.
| City | Last frost | Sow | First harvest |
|---|---|---|---|
| Columbuszone 6b | Apr 20 | Apr 6 | May 21 |
| Clevelandzone 7a | Apr 8 | Mar 25 | May 9 |
| Cincinnatizone 6b | Apr 16 | Apr 2 | May 17 |
| Toledozone 6b | Apr 20 | Apr 6 | May 21 |
| Akronzone 6b | Apr 24 | Apr 10 | May 25 |
| Daytonzone 6b | Apr 18 | Apr 4 | May 19 |
| Parmazone 6b | Apr 20 | Apr 6 | May 21 |
| Cantonzone 6b | Apr 24 | Apr 10 | May 25 |
| Lorainzone 6b | Apr 24 | Apr 10 | May 25 |
| Hamiltonzone 6b | Apr 22 | Apr 8 | May 23 |
| Youngstownzone 6a | May 1 | Apr 17 | Jun 1 |
| Springfieldzone 6a | Apr 25 | Apr 11 | May 26 |
| Ketteringzone 6b | Apr 18 | Apr 4 | May 19 |
| Elyriazone 6b | Apr 24 | Apr 10 | May 25 |
| Middletownzone 6b | Apr 24 | Apr 10 | May 25 |
| Newarkzone 6a | Apr 29 | Apr 15 | May 30 |
| Cuyahoga Fallszone 6b | Apr 24 | Apr 10 | May 25 |
| Lakewoodzone 7a | Apr 20 | Apr 6 | May 21 |
| Dublinzone 6b | Apr 22 | Apr 8 | May 23 |
| Euclidzone 7a | Apr 8 | Mar 25 | May 9 |
| Beavercreekzone 6b | Apr 18 | Apr 4 | May 19 |
| Mansfieldzone 6a | Apr 26 | Apr 12 | May 27 |
| Mentorzone 7a | Apr 26 | Apr 12 | May 27 |
| Delawarezone 6b | Apr 19 | Apr 5 | May 20 |
| Strongsvillezone 6b | Apr 20 | Apr 6 | May 21 |
| Fairfieldzone 6b | Apr 19 | Apr 5 | May 20 |
| Cleveland Heightszone 6b | Apr 8 | Mar 25 | May 9 |
| Grove Cityzone 6b | Apr 23 | Apr 9 | May 24 |
| Huber Heightszone 6b | Apr 16 | Apr 2 | May 17 |
| Reynoldsburgzone 6b | Apr 18 | Apr 4 | May 19 |
| Lancasterzone 6a | Apr 22 | Apr 8 | May 23 |
What these cilantro become
What Ohio cilantro need
Cilantro / Coriander Seed
Bolts in a heartbeat and there is nothing you can do about it — so you succession-sow instead of fighting it. Non-negotiable in salsa verde and zhoug.
Organic Seed Starter Potting MixMust have
Seed-starting mix is not potting soil with a nicer label — it is finer, lighter, and low in nutrients on purpose, because a seedling's first roots want air and moisture, not fertiliser.
Ocean Forest Potting SoilMust have
Pre-charged with enough nutrition to carry a transplant for its first month without feeding, which is exactly the window when most container plants stall.
5-Gallon Fabric Grow Bags, 5-Pack
Fabric pots air-prune roots and drain faster than a plastic pot can, which is the entire reason container tomatoes fail. Five gallons is the honest minimum for a pepper; a tomato wants ten.
AG-30 Frost Protection Row Cover
AG-30 buys roughly 6 °F of frost protection while passing about 70% of light — enough to carry a crop through an early-October cold snap that would otherwise end your season two weeks short.
6" Micro-Tip Pruning SnipsMust have
Ninety percent of sauce-garden cutting is snipping a pepper stem or a basil node, and a fine-tipped snip does it better than any pruner. Pulling peppers by hand tears the branch.
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Cilantro in Ohio: questions
When should I plant cilantro in Ohio?
Direct sow around Apr 10 at the statewide median; across the state that date runs from Apr 3 in the warmest tenth of Ohio's ZIP codes to Apr 17 in the coldest. To cut the freeze risk to one year in ten, count from May 10 instead of the median last frost. Use the city table for your own town.
When is the last frost in Ohio?
The ZIP-weighted median of NOAA 1991–2020 station medians is Apr 24. In the warmest tenth of Ohio's ZIP codes the median last frost falls on or before Apr 17; in the coldest tenth, on or after May 1.
When will Ohio cilantro be ready to harvest?
Cilantro planted on the statewide date is ready around May 25: 45 days from sow.
More for Ohio
- When to plant tomatoes
- When to plant peppers
- When to plant tomatillos
- When to plant basil
- When to plant onions
- When to plant carrots
- When to plant mustard greens
Cilantro in every state → · Ohio frost dates → · How frost-date math works →