When to plant · 11 cities · zones 7a–7b
When to plant tomatillos in Oklahoma
Start Tomatillo seeds indoors around Feb 21 and transplant around Apr 11 — the Oklahoma statewide median, counted from a last spring frost of Apr 4 across 665 ZIP codes and 192 NOAA stations.
The rule: Six weeks indoors, transplant after the last frost, and give each plant 30 inches and a large cage.
Oklahoma tomatillos, by step
Statewide median last frost Apr 4, first fall frost Nov 2, 2027 season. Each cultivar's own indoor lead time and days to maturity, same engine as the Plan Builder.
| Cultivar | Start indoors | Plant out | First harvest | Days |
|---|---|---|---|---|
| TomatilloToma Verde | Feb 21 | Apr 11 | Jun 20 | 70 from transplant |
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 Oklahoma's ZIP codes resolve to.
Tomatillos in Oklahoma, city by city
Tomatillo, scheduled from each city's nearest NOAA station — the same dates as its frost page.
| City | Last frost | Start indoors | Plant out | First harvest |
|---|---|---|---|---|
| Oklahoma Cityzone 7b | Apr 4 | Feb 21 | Apr 11 | Jun 20 |
| Tulsazone 7b | Mar 31 | Feb 17 | Apr 7 | Jun 16 |
| Normanzone 7b | Mar 31 | Feb 17 | Apr 7 | Jun 16 |
| Broken Arrowzone 7b | Apr 1 | Feb 18 | Apr 8 | Jun 17 |
| Edmondzone 7b | Apr 10 | Feb 27 | Apr 17 | Jun 26 |
| Lawtonzone 7b | Mar 26 | Feb 12 | Apr 2 | Jun 11 |
| Moorezone 7b | Mar 31 | Feb 17 | Apr 7 | Jun 16 |
| Midwest Cityzone 7b | Apr 2 | Feb 19 | Apr 9 | Jun 18 |
| Enidzone 7a | Apr 6 | Feb 23 | Apr 13 | Jun 22 |
| Stillwaterzone 7a | Apr 5 | Feb 22 | Apr 12 | Jun 21 |
| Owassozone 7b | Mar 31 | Feb 17 | Apr 7 | Jun 16 |
What Oklahoma tomatillos need
Toma Verde Tomatillo SeedMust have
Salsa verde is not a green tomato sauce — it is a tomatillo sauce, and the difference is the tartness and the natural pectin that makes it cling. There is no substitute.
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.
Seedling Heat Mat + Digital ThermostatMust have
Peppers germinate on soil temperature, not air temperature. At 65 °F a habanero takes a month and half of them rot; at 85 °F it is up in eight days. The thermostat is the half that matters.
T8 Full-Spectrum Grow Lights, 1 ft 4-packMust have
A south window in March delivers a fraction of the light a pepper seedling needs, and the plant tells you by stretching. Two inches of LED above the canopy for 16 hours a day fixes it permanently.
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.
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.
Organic Tomato-Tone 3-4-6 with 8% CalciumMust have
The NPK ratio is the point: low nitrogen, higher potassium. Feed a tomato a high-nitrogen lawn fertiliser and you get a magnificent six-foot plant with four tomatoes on it.
58" Square Tomato Cages, 3-PackMust have
The conical wire tomato ring from the hardware store is 33 inches tall and an indeterminate San Marzano will laugh at it in July. Height and square geometry are what actually hold a loaded plant.
Garden Harvest Basket with Tool Caddy
A harvest basket that doubles as a colander means the hose rinse happens in the garden, and the dirt stays outside. On a 20-pound tomato day that is a genuine time saving.
Stainless Steel Food Mill, 3 discsMust have
A blender pulverises tomato skins and seeds into the sauce, which is where bitterness comes from. A mill separates them out — no blanching, no peeling, no ice bath. It removes an entire hour from sauce day.
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Tomatillos in Oklahoma: questions
When should I plant tomatillos in Oklahoma?
Transplant around Apr 11 at the statewide median; across the state that date runs from Apr 4 in the warmest tenth of Oklahoma's ZIP codes to Apr 19 in the coldest. To cut the freeze risk to one year in ten, count from Apr 20 instead of the median last frost. Use the city table for your own town.
When do I start tomatillos seeds indoors in Oklahoma?
Around Feb 21 for Tomatillo: 6 weeks before the statewide median last frost, on soil held at 75–85 °F.
When is the last frost in Oklahoma?
The ZIP-weighted median of NOAA 1991–2020 station medians is Apr 4. In the warmest tenth of Oklahoma's ZIP codes the median last frost falls on or before Mar 28; in the coldest tenth, on or after Apr 12.
When will Oklahoma tomatillos be ready to harvest?
Tomatillo planted on the statewide date is ready around Jun 20: 70 days from transplant.
More for Oklahoma
- When to plant tomatoes
- When to plant peppers
- When to plant basil
- When to plant onions
- When to plant cilantro
- When to plant carrots
- When to plant mustard greens
Tomatillos in every state → · Oklahoma frost dates → · How frost-date math works →