St. Cloud, Minnesota planting calendar and frost dates
St. Cloud is in USDA hardiness zone 4b. The last spring frost typically comes around May 7 and the first fall frost around September 30, giving about 144 frost-free days a year.
- Hardiness zone
- Zone 4b
- Typical last frost
- May 7
- Typical first frost
- September 30
- Frost-free season
- 144 days
Frost dates in St. Cloud
Last spring frost
- April 24Risky: frost later than this in 9 years out of 10
- May 7Typical: a later frost in half of years
- May 23Safe: a later frost only 1 year in 10
First fall frost
- September 16Risky: frost earlier than this 1 year in 10
- September 30Typical: an earlier frost in half of years
- October 12Late: frost before this in 9 years out of 10
The growing season between the typical last and first frosts is about 144 days. Frost here means a low of 32°F at the weather station. A hard freeze (28°F), which damages most hardy crops too, typically ends around April 27 and returns around October 8.
NOAA U.S. Climate Normals 1991-2020 for St Cloud Rgnl Airport, 10 miles ENE of the city center. Low-lying and rural spots often frost later in spring and earlier in fall than airports and city centers.
What to plant each month in St. Cloud
January
Start indoors: onions
February
Start indoors: broccoli, cabbages, cauliflower, collard greens, kale, leeks, onions, oregano, parsley, petunias, ranunculus, rosemary, snapdragons
March
Start indoors: black-eyed susans, broccoli, cabbages, cauliflower, celery, chives, cilantro, collard greens, eggplants, ginger, kale, leeks, lettuce, marigolds, nasturtiums, oregano, parsley, peppers, petunias, ranunculus, rosemary, sage, snapdragons, spinach, swiss chard
Plant or sow outdoors: black-eyed susans, blueberries, garlic, grapes, grass seed, hollyhocks, onions, peas, poppies, raspberries, rhubarb, strawberries, turnips, wildflowers
April
Start indoors: basil, cantaloupes, celery, cilantro, cucumbers, eggplants, marigolds, nasturtiums, peppers, pumpkins, ranunculus, spinach, swiss chard, tomatoes, watermelons, winter squash, zucchini
Plant or sow outdoors: beets, black-eyed susans, blackberries, blueberries, broccoli, cabbages, carrots, cauliflower, chives, cilantro, collard greens, dahlias, dill, figs, garlic, gladioli, grapes, grass seed, hollyhocks, kale, leeks, lettuce, onions, parsley, peas, poppies, radishes, ranunculus, raspberries, rhubarb, roses, snapdragons, spinach, strawberries, swiss chard, turnips, wildflowers
May
Start indoors: cantaloupes, cosmos, cucumbers, okra, pumpkins, watermelons, winter squash, zucchini
Plant or sow outdoors: asparagus, basil, beets, cantaloupes, carrots, chives, cilantro, cucumbers, dahlias, dill, eggplants, figs, garden mums, ginger, gladioli, grapes, green beans, green onions, kentucky bluegrass, lavenders, leeks, lettuce, lilies, marigolds, mints, nasturtiums, oregano, parsley, peppers, perennial ryegrass, petunias, potatoes, pumpkins, ranunculus, rosemary, roses, sage, snapdragons, spinach, sunflowers, sweet corn, sweet peas, swiss chard, tall fescue, thyme, tomatoes, watermelons, winter squash, zucchini
June
Start indoors: zinnias
Plant or sow outdoors: asparagus, basil, bermudagrass, cantaloupes, celery, centipedegrass, cosmos, cucumbers, eggplants, garden mums, green beans, green onions, okra, peanuts, peppers, pumpkins, st. augustinegrass, sweet potatoes, tomatoes, watermelons, winter squash, zoysiagrass, zucchini
Plant for fall: brussels sprouts
July
Plant or sow outdoors: bermudagrass, centipedegrass, green onions, okra, st. augustinegrass, zinnias, zoysiagrass
Plant for fall: bearded irises, beets, broccoli, brussels sprouts, cabbages, carrots, cauliflower, collard greens, daylilies, kale, lettuce, peas, radishes, snapdragons, spinach, swiss chard, turnips
August
Plant for fall: azaleas, bearded irises, beets, broccoli, cabbages, cauliflower, clematis, coneflowers, crocuses, daffodils, daylilies, grass seed, hostas, hydrangeas, kale, lettuce, lilies, ornamental alliums, peonies, radishes, roses, saffron, snapdragons, spinach, tulips, turnips
September
Plant for fall: crocuses, daffodils, daylilies, garlic, grass seed, hostas, hyacinths, kale, lilies, ornamental alliums, peonies, radishes, saffron, tulips
October
Plant for fall: crocuses, garlic, hyacinths, ornamental alliums, tulips
Frost dates and zones by ZIP code in St. Cloud
All 3 of St. Cloud's main ZIP codes take their frost dates from St Cloud Rgnl Airport, so the dates on this page apply across the city. Every one of them is in zone 4b.
Planting dates for popular crops in St. Cloud
| Plant | Start indoors | Plant or sow outdoors | Fall planting |
|---|---|---|---|
| Tomatoes | Apr 1 to 15 | May 27 to Jun 10 | — |
| Strawberries | — | Mar 26 to Apr 9 | — |
| Lettuce | Mar 12 to 26 | Apr 30 to May 14 | Jul 1 to Aug 5 |
| Cilantro | Mar 26 to Apr 9 | May 7 to 14 | — |
| Basil | Apr 8 to 22 | May 27 to Jun 3 | — |
| Potatoes | — | May 1 to 8 | — |
| Garlic | — | Mar 26 to Apr 9 | Sep 30 to Oct 14 |
| Onions | Jan 15 to Feb 26 | Apr 9 to 23 | — |
| Cucumbers | Apr 29 to May 13 | May 27 to Jun 10 | — |
| Pumpkins | Apr 29 to May 13 | May 27 to Jun 10 | — |
| Peppers | Mar 11 to Apr 8 | May 27 to Jun 10 | — |
| Carrots | — | Apr 16 to May 7 | Jul 8 to 29 |
| Sweet Potatoes | — | Jun 12 to 19 | — |
| Watermelons | Apr 22 to May 6 | May 27 to Jun 10 | — |
| Sweet Corn | — | May 7 to 21 | — |
| Green Beans | — | May 27 to Jun 10 | — |
| Zucchini | Apr 29 to May 13 | May 27 to Jun 10 | — |
| Broccoli | Feb 19 to Mar 12 | Apr 9 to 23 | Jul 15 to Aug 12 |
| Peas | — | Mar 26 to Apr 9 | Jul 8 to 22 |
| Spinach | Mar 26 to Apr 2 | Apr 30 to May 14 | Jul 22 to Aug 26 |
| Sunflowers | — | May 7 to 28 | — |
| Zinnias | Jun 8 to 15 | Jul 6 to 20 | — |
| Tulips | — | — | Aug 19 to Oct 14 |
| Daffodils | — | — | Aug 19 to Sep 30 |
| Grass Seed | — | Mar 26 to Apr 9 | Aug 19 to Sep 2 |
Nearby cities
- Maple Grove, MN zone 5a, last frost Apr 30
- Coon Rapids, MN zone 5a, last frost Apr 30
- Plymouth, MN zone 5a, last frost Apr 29
- Brooklyn Park, MN zone 5a, last frost Apr 30
- Blaine, MN zone 5a, last frost Apr 30
- Minnetonka, MN zone 5a, last frost Apr 23
Planting in MinnesotaAbout zone 4bPrintable calendar for St. Cloud
Questions
When is the last frost in St. Cloud?
Around May 7 in a typical year, based on NOAA's 1991-2020 records for St Cloud Rgnl Airport. There is still a 1 in 10 chance of frost after May 23.
What planting zone is St. Cloud in?
USDA hardiness zone 4b (2023 map). The zone tells you which perennials survive the winter; planting dates depend on frost dates instead.
When should I plant tomatoes in St. Cloud?
Start seeds indoors April 1 to 15 and set plants out May 27 to June 10.
When is the first frost in St. Cloud?
Around September 30 in a typical year, and before September 16 about 1 year in 10.