Gardening in Michigan

Everything we have worked out for Michigan: what to plant and when, which varieties finish in time, the pests that actually turn up here, and the jobs that pay off month by month. We also cover the rest of the property, from lawns and soil to home care and energy, because a garden rarely stops at the vegetable bed.

The numbers first, because everything else follows from them. Measured at the weather station in Detroit, the last spring freeze runs April 30 in the Detroit area; early to mid May across most of the Lower Peninsula and the first fall freeze runs October 6 to October 21, USDA zones 4a-6b, 3,248 growing degree days in the year.

Garlic does well: 26.1 weeks below 40 °F, comfortably past the six it needs to form a proper head.

Elsewhere on the property in Michigan: the pests that turn up here.

Figures from NOAA's 1991-2020 climate normals. A state is not one climate: elevation, a large lake or the coast can move these dates by two weeks either way, so check your own county with the extension service before you spend money.

What Do Homes in Michigan Cool With?

What Do Homes in Michigan Cool With?

Michigan homes lean on central air conditioning more than a lot of people assume, though a real share also run window units, mini-splits, or portables to…

What Eats Onion in Michigan, and When

A vibrant arrangement of fresh yellow, white, and red onions with green scallions displayed on a wooden table overlooking a sunlit farm landscape.

Most home gardens in Michigan lose onion seed, seedlings, and foliage to a short list of generalist feeders, not to a single insect that specializes in…

First and Last Frost Dates in Michigan

First and Last Frost Dates in Michigan

Michigan doesn’t share one frost date because it isn’t one climate. The last spring frost lands around April 30 in the Detroit area, while most of the…