What to plant in February in South Dakota
In South Dakota (SD), February sits about 12 weeks before the average last frost (May 10). The state averages 138 frost-free days a year (last frost May 10, first frost September 25; USDA zones 3b, 4a, 4b, 5a).
5 crops have a sowing or planting window this month.
Dates here come from South Dakota frost dates (last frost May 10, first frost Sep 25). For one crop in detail, see when to plant onion, tomato or lettuce in South Dakota.
South Dakota: planting activity through the year
Start seeds indoors in February (5)
Indoor sowings for transplants later. Six to eight weeks under lights is typical for tomatoes and peppers; onions and leeks need longer.
Planting dates for popular crops in South Dakota
Every crop has its own full-year dates for South Dakota: indoor start, transplant or direct sowing, and harvest.
A planning month: February garden jobs in South Dakota
- Order seed while stock is good. South Dakota's average last frost is May 10, so the first indoor sowings begin around February 15 - see starting seeds indoors.
- Sketch this year's beds and move each crop family to a new spot - the garden planner and the crop rotation guide make it quick.
- Test old seed: roll ten seeds in a damp paper towel for a week. If fewer than seven sprout, sow thicker or buy fresh.
- If the ground isn't frozen, spread compost now so it's worked in by spring, and send off a soil test - February is when labs are quiet.
USDA zone chart for South Dakota
South Dakota spans USDA zones 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 South Dakota in February?
5 crops have a window in February: celeriac, celery, leek, onion, rosemary. The tables above give the exact dates for each.
Is it too late to plant tomatoes in South Dakota in February?
Not too late - it's actually a little early. In South Dakota the next tomato window opens around March 15: start seeds indoors.
Is it too late to plant lettuce in South Dakota in February?
Not too late - it's actually a little early. In South Dakota the next lettuce window opens around April 5: start seeds indoors.
When is the first frost in South Dakota?
The statewide average first fall frost is around September 25 and the last spring frost around May 10. Your town can be a week or two either side - look yours up by ZIP code.
What should I start indoors in February in South Dakota?
Celeriac (Feb 15 – Mar 1), Celery (Feb 22 – Mar 8), Leek (Feb 22 – Mar 8), Onion (Feb 22 – Mar 8), Rosemary (Feb 22 – Mar 8).
What to plant in February in other states
Dates are computed from South Dakota’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.