What to plant in October in Minnesota
In Minnesota (MN), the average first fall frost (September 28) has passed by mid-October. The state averages 145 frost-free days a year (last frost May 6, first frost September 28; USDA zones 3a, 3b, 4a, 4b, 5a).
2 crops have a sowing or planting window this month: shallot, garlic.
Dates here come from Minnesota frost dates (last frost May 6, first frost Sep 28). For one crop in detail, see when to plant garlic, tomato or lettuce in Minnesota.
Minnesota: planting activity through the year
For fall and winter harvests (2)
Sowings counted back from Minnesota's first fall frost, so the crop matures before the cold - or, for garlic and similar, planted after it.
Harvesting in October
First harvests expected this month from crops sown or planted on time earlier in the season.
Planting dates for popular crops in Minnesota
Every crop has its own full-year dates for Minnesota: indoor start, transplant or direct sowing, and harvest.
Spring bulbs to plant in October in Minnesota
Usually mid-September to mid-October, so roots grow before the ground freezes. Tulips can go in as late as you can get them into the soil. (University of Minnesota Extension) ↗
After the first frost: October garden jobs in Minnesota
- The average first frost (September 28) has passed - pull frost-killed tender plants and compost the healthy ones; bin or burn anything that had blight or mildew.
- Plant garlic now (Oct 9 – Oct 26): single cloves, pointy end up, 2 inches deep and 6 inches apart, then mulch.
- Leave cold-hardy roots (carrots, parsnips, leeks) in the ground under a thick mulch and dig them as needed.
- Clean and oil tools, drain hoses, and note what worked this year while you still remember - it makes next year's plan far easier.
USDA zone chart for Minnesota
Minnesota spans USDA zones 3a, 3b, 4a, 4b, 5a. Colder zones, usually higher or further inland, have a later last spring frost and an earlier first fall frost than the state average.
Questions gardeners ask
What vegetables can I plant in Minnesota in October?
2 crops have a window in October: shallot, garlic. The tables above give the exact dates for each.
Is it too late to plant garlic in Minnesota in October?
No - plant in fall (after first frost) runs Oct 9 – Oct 26 in Minnesota, so do it before October 26.
Is it too late to plant tomatoes in Minnesota in October?
For this year, yes - the tomato windows in Minnesota have closed. The next step is to start seeds indoors from about March 11.
When is the first frost in Minnesota?
The statewide average first fall frost is around September 28 and the last spring frost around May 6. Your town can be a week or two either side - look yours up by ZIP code.
What can I harvest in Minnesota in October?
From plantings made on time: cauliflower, cabbage, luffa (loofah gourd), peanut, lettuce, brussels sprouts, napa cabbage, mustard greens, fennel (bulb), cilantro / coriander.
When should I plant spring bulbs in Minnesota?
Usually mid-September to mid-October, so roots grow before the ground freezes. Tulips can go in as late as you can get them into the soil. (University of Minnesota Extension). See the bulb planting guide for depth and spacing.
What to plant in October in other states
Dates are computed from Minnesota’s statewide average frost dates (from NOAA/NCEI climate normals) and each crop’s timing in our crop database. Your garden may be a week or two either side - for dates tuned to your ZIP code, use the planting calendar.