When to plant · 29 cities · zones 6a–6b

When to plant tomatillos in Michigan

Start Tomatillo seeds indoors around Mar 22 and transplant around May 10 — the Michigan statewide median, counted from a last spring frost of May 3 across 988 ZIP codes and 196 NOAA stations.

Mar 22Start indoors6 weeks before last frost
May 10Plant outMay 3 – May 30 across the state
May 3Last spring frostmedian · 1 in 10 years after May 20
Jul 19First harvest70 days from transplant

The rule: Six weeks indoors, transplant after the last frost, and give each plant 30 inches and a large cage.

Michigan tomatillos, by step

Statewide median last frost May 3, first fall frost Oct 14, 2027 season. Each cultivar's own indoor lead time and days to maturity, same engine as the Plan Builder.

CultivarStart indoorsPlant outFirst harvestDays
TomatilloToma VerdeMar 22May 10Jul 1970 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 Michigan's ZIP codes resolve to; 4 of 992 ZIPs have no datable freeze and are left out.

Tomatillos in Michigan, city by city

Tomatillo, scheduled from each city's nearest NOAA station — the same dates as its frost page.

CityLast frostStart indoorsPlant outFirst harvest
Detroitzone 6bApr 27Mar 16May 4Jul 13
Grand Rapidszone 6aApr 29Mar 18May 6Jul 15
Warrenzone 6bApr 21Mar 10Apr 28Jul 7
Sterling Heightszone 6bApr 30Mar 19May 7Jul 16
Ann Arborzone 6aMay 5Mar 24May 12Jul 21
Lansingzone 6aMay 1Mar 20May 8Jul 17
Dearbornzone 6bApr 27Mar 16May 4Jul 13
Livoniazone 6bMay 1Mar 20May 8Jul 17
Troyzone 6bApr 26Mar 15May 3Jul 12
Farmington Hillszone 6aMay 1Mar 20May 8Jul 17
Westlandzone 6bMay 1Mar 20May 8Jul 17
Flintzone 6aMay 3Mar 22May 10Jul 19
Wyomingzone 6aApr 29Mar 18May 6Jul 15
Rochester Hillszone 6aApr 26Mar 15May 3Jul 12
Southfieldzone 6bMay 1Mar 20May 8Jul 17
Kalamazoozone 6aApr 28Mar 17May 5Jul 14
Novizone 6aMay 1Mar 20May 8Jul 17
Pontiaczone 6aApr 26Mar 15May 3Jul 12
Taylorzone 6bApr 20Mar 9Apr 27Jul 6
Dearborn Heightszone 6bMay 1Mar 20May 8Jul 17
Royal Oakzone 6bApr 26Mar 15May 3Jul 12
St. Clair Shoreszone 6bApr 29Mar 18May 6Jul 15
Kentwoodzone 6aApr 29Mar 18May 6Jul 15
Battle Creekzone 6aApr 30Mar 19May 7Jul 16
Portagezone 6aApr 28Mar 17May 5Jul 14
East Lansingzone 6aApr 28Mar 17May 5Jul 14
Rosevillezone 6bApr 29Mar 18May 6Jul 15
Saginawzone 6aApr 29Mar 18May 6Jul 15
Midlandzone 6aApr 29Mar 18May 6Jul 15

What Michigan tomatillos need

SeedsThe cultivar decides the sauce. Everything downstream is damage control.
  • 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.

StartSoil temperature and light intensity, indoors, weeks before your frost date.
  • 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.

GrowRoot volume, nutrition and structure. Where most home crops actually fail.
  • 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.

HarvestTiming, handling, and weighing what you actually got.
  • 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.

CookReduction, texture, and the non-reactive pans that keep tomato tasting like tomato.
  • 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 Michigan: questions

When should I plant tomatillos in Michigan?

Transplant around May 10 at the statewide median; across the state that date runs from May 3 in the warmest tenth of Michigan's ZIP codes to May 30 in the coldest. To cut the freeze risk to one year in ten, count from May 20 instead of the median last frost. Use the city table for your own town.

When do I start tomatillos seeds indoors in Michigan?

Around Mar 22 for Tomatillo: 6 weeks before the statewide median last frost, on soil held at 75–85 °F.

When is the last frost in Michigan?

The ZIP-weighted median of NOAA 1991–2020 station medians is May 3. In the warmest tenth of Michigan's ZIP codes the median last frost falls on or before Apr 26; in the coldest tenth, on or after May 23.

When will Michigan tomatillos be ready to harvest?

Tomatillo planted on the statewide date is ready around Jul 19: 70 days from transplant.

More for Michigan

Tomatillos in every state → · Michigan frost dates → · How frost-date math works →