When to plant · 31 cities · zones 6a–7a
When to plant mustard greens in Ohio
Direct sow mustard greens around Apr 24 — 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 as soon as the soil can be worked in spring, and again in late summer for fall. Seed germinates fastest at 55–65 °F and may stall above 80 °F.
Ohio mustard greens, 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 |
|---|---|---|---|---|
| Mustard greensGarnet Giant (Brassica juncea) | Direct sow | Apr 24 | May 24 | 30 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.
Mustard Greens in Ohio, city by city
Mustard greens, 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 20 | May 20 |
| Clevelandzone 7a | Apr 8 | Apr 8 | May 8 |
| Cincinnatizone 6b | Apr 16 | Apr 16 | May 16 |
| Toledozone 6b | Apr 20 | Apr 20 | May 20 |
| Akronzone 6b | Apr 24 | Apr 24 | May 24 |
| Daytonzone 6b | Apr 18 | Apr 18 | May 18 |
| Parmazone 6b | Apr 20 | Apr 20 | May 20 |
| Cantonzone 6b | Apr 24 | Apr 24 | May 24 |
| Lorainzone 6b | Apr 24 | Apr 24 | May 24 |
| Hamiltonzone 6b | Apr 22 | Apr 22 | May 22 |
| Youngstownzone 6a | May 1 | May 1 | May 31 |
| Springfieldzone 6a | Apr 25 | Apr 25 | May 25 |
| Ketteringzone 6b | Apr 18 | Apr 18 | May 18 |
| Elyriazone 6b | Apr 24 | Apr 24 | May 24 |
| Middletownzone 6b | Apr 24 | Apr 24 | May 24 |
| Newarkzone 6a | Apr 29 | Apr 29 | May 29 |
| Cuyahoga Fallszone 6b | Apr 24 | Apr 24 | May 24 |
| Lakewoodzone 7a | Apr 20 | Apr 20 | May 20 |
| Dublinzone 6b | Apr 22 | Apr 22 | May 22 |
| Euclidzone 7a | Apr 8 | Apr 8 | May 8 |
| Beavercreekzone 6b | Apr 18 | Apr 18 | May 18 |
| Mansfieldzone 6a | Apr 26 | Apr 26 | May 26 |
| Mentorzone 7a | Apr 26 | Apr 26 | May 26 |
| Delawarezone 6b | Apr 19 | Apr 19 | May 19 |
| Strongsvillezone 6b | Apr 20 | Apr 20 | May 20 |
| Fairfieldzone 6b | Apr 19 | Apr 19 | May 19 |
| Cleveland Heightszone 6b | Apr 8 | Apr 8 | May 8 |
| Grove Cityzone 6b | Apr 23 | Apr 23 | May 23 |
| Huber Heightszone 6b | Apr 16 | Apr 16 | May 16 |
| Reynoldsburgzone 6b | Apr 18 | Apr 18 | May 18 |
| Lancasterzone 6a | Apr 22 | Apr 22 | May 22 |
What Ohio mustard greens need
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.
72-Cell Trays with 1020 Bottoms, 5-PackMust have
The cheap black nursery trays crack after one season and flex enough to break roots when you lift them. These do not. Over five seasons the price per use is lower than the throwaways.
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.
Ultra-Fine Garden Netting, 10×33 ft, 2 pcs
A hornworm is a moth's decision made in June. Fine mesh over the bed at transplant means the moth never lands, and you never spray anything at all.
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.
Digital Kitchen Scale, 11 lb, g/ozMust have
Fermentation brine is a percentage of weight, not a number of spoons. Without a gram scale you are not following a fermentation recipe — you are guessing at the one number that determines whether it is safe.
One-Touch Coffee & Spice Grinder
Dried cayenne into powder in fifteen seconds. Dedicate one to chiles — grind coffee in it afterwards and you will find out exactly how well capsaicin sticks to plastic.
Half Pint (8 oz) Regular Mouth Mason Jars, 12Must have
Eight ounces is the right jar for a sauce you use by the spoonful. Open a quart of hot sauce and you are racing the fridge; open a half-pint and you finish it while it is still good.
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Mustard Greens in Ohio: questions
When should I plant mustard greens in Ohio?
Direct sow around Apr 24 at the statewide median; across the state that date runs from Apr 17 in the warmest tenth of Ohio's ZIP codes to May 1 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 mustard greens be ready to harvest?
Mustard greens planted on the statewide date is ready around May 24: 30 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 cilantro
- When to plant carrots
Mustard Greens in every state → · Ohio frost dates → · How frost-date math works →