What USDA hardiness zones are in Michigan?
Michigan spans USDA hardiness zones 4a-6b, per the USDA Plant Hardiness Zone Map 2023. Zones reflect average annual extreme minimum temperatures from 1991–2020 weather data.
Is it too late to plant in Michigan?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Across Michigan, cool-season planting typically opens about four weeks before the local last hard freeze — county medians put that freeze near Apr 12, with the middle half of counties between Apr 6 and Apr 22 (NOAA 1991–2020 climate normals). Tender transplants wait two to three weeks past it, and fall planting counts back from first freezes mostly between Nov 3 and Nov 15 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
When does frost risk typically end in Michigan?
Across Michigan, the middle half of counties see their last hard freeze (28°F) between about Apr 6 and Apr 22, with a county median near Apr 12 (NOAA 1991–2020 climate normals). That marks the hard freeze, not the last light frost — light frosts can still bite for a few more weeks, so tender transplants usually wait another 2–3 weeks.
How long is the growing season in Michigan?
Measured between 28°F hard freezes, growing seasons across Michigan's counties mostly run about 196 to 222 days, with a county median near 216 (NOAA 1991–2020 climate normals). Tender crops get a somewhat shorter practical window, since lighter frosts reach a few weeks past the hard-freeze dates on both ends.
What vegetables grow well in Michigan?
Michigan's zones 4a-6b support a wide range — strong performers include Cherry, Blueberry, Apple, Asparagus, and White Pine. What actually takes on any one site comes down to its soil, sun, and drainage, and we score each plant against the real conditions at your address.
Which hardiness zone is Michigan, really?
Officially, Michigan spans USDA zones 4a-6b (USDA PHZM 2023) — but a zone is a 30-year average of winter's coldest night across an area, and it can't see any one yard. A south-facing slope, a tree line, or a low frost pocket can shift a single site by half a zone either way, which is why neighboring gardeners often quote different numbers. We read the conditions at your exact address — soil, sun, slope, and frost — and score 1,112 plants against what's actually there.
Is the soil safe to grow vegetables in Michigan?
The federal record across Michigan runs heavier than most — 60,035 documented sites — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
Just moved to Michigan — what should I know before planting?
Start with three facts. Michigan spans USDA zones 4a-6b, which sets what survives winter; last hard freezes range from about Apr 6 to Apr 22 across its counties (NOAA 1991–2020 climate normals); and 60,035 documented sites sit on the federal record here, so a soil test before food beds is the smart first step. From there, matching plants to your actual soil and sun is the fun part.