Gardening in Kentucky

Everything we have worked out for Kentucky: 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 Louisville, the last spring freeze runs March 24 to April 4 and the first fall freeze runs November 2 to November 12, USDA zones 6a-7a, 4,712 growing degree days in the year.

Garlic does well: 21.8 weeks below 40 °F, comfortably past the six it needs to form a proper head.

Elsewhere on the property in Kentucky: 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.

The Kentucky Apple Calendar, Stage by Stage

The Kentucky Apple Calendar, Stage by Stage

Kentucky’s apple stages, from dormancy to harvest, are timed against NOAA’s Louisville frost dates, with regional adjustments for elevation and valley cold pockets across the state.

When to Plant Onions in Kentucky

When to Plant Onions in Kentucky

Kentucky gardeners plant onions in late winter to early spring, not fall. At 38.18°N, the reference latitude for this page, the longest day of the year…

The Best Onion Varieties for Kentucky

The Best Onion Varieties for Kentucky

Kentucky sits at a latitude where both long-day and intermediate-day onions can size up properly, but the state’s daylight ceiling of 14 hours 39 minutes…