Eagle Mountain, Utah planting calendar and frost dates
Eagle Mountain is in USDA hardiness zone 6b. The last spring frost typically comes around June 2 and the first fall frost around September 16, giving about 103 frost-free days a year.
- Typical last frost
- June 2
- Typical first frost
- September 16
- Frost-free season
- 103 days
Frost dates in Eagle Mountain
Last spring frost
- May 18Risky: frost later than this in 9 years out of 10
- June 2Typical: a later frost in half of years
- June 24Safe: a later frost only 1 year in 10
First fall frost
- September 1Risky: frost earlier than this 1 year in 10
- September 16Typical: an earlier frost in half of years
- September 29Late: frost before this in 9 years out of 10
The growing season between the typical last and first frosts is about 103 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 May 19 and returns around September 26.
NOAA U.S. Climate Normals 1991-2020 for Fairfield, 6.3 miles SW 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 Eagle Mountain
February
Start indoors: onions
March
Start indoors: broccoli, cabbages, cauliflower, celery, collard greens, kale, leeks, onions, oregano, parsley, peppers, petunias, ranunculus, rosemary, snapdragons
April
Start indoors: basil, black-eyed susans, broccoli, cabbages, cauliflower, celery, chives, cilantro, collard greens, eggplants, ginger, leeks, lettuce, marigolds, nasturtiums, oregano, parsley, peppers, petunias, ranunculus, rosemary, sage, snapdragons, spinach, swiss chard, tomatoes
Plant or sow outdoors: black-eyed susans, blueberries, garlic, grapes, grass seed, hollyhocks, kale, onions, peas, poppies, raspberries, rhubarb, strawberries, turnips, wildflowers
May
Start indoors: basil, cantaloupes, cilantro, cosmos, cucumbers, marigolds, nasturtiums, okra, pumpkins, ranunculus, watermelons, winter squash, zucchini
Plant or sow outdoors: asparagus, beets, black-eyed susans, blackberries, blueberries, broccoli, cabbages, carrots, cauliflower, chives, cilantro, collard greens, dahlias, dill, figs, garlic, gladioli, grapes, grass seed, green onions, hollyhocks, kale, kentucky bluegrass, leeks, lettuce, onions, parsley, peas, perennial ryegrass, poppies, potatoes, radishes, ranunculus, raspberries, rhubarb, roses, snapdragons, spinach, strawberries, sweet peas, swiss chard, tall fescue, turnips, wildflowers
June
Start indoors: pumpkins, winter squash, zinnias
Plant or sow outdoors: asparagus, basil, beets, cantaloupes, carrots, celery, chives, cilantro, cosmos, cucumbers, dahlias, dill, eggplants, figs, garden mums, ginger, gladioli, grapes, green beans, green onions, kentucky bluegrass, lavenders, leeks, lettuce, lilies, marigolds, mints, nasturtiums, okra, oregano, parsley, peanuts, peppers, perennial ryegrass, petunias, pumpkins, ranunculus, rosemary, roses, sage, snapdragons, spinach, sunflowers, sweet corn, sweet peas, sweet potatoes, swiss chard, tall fescue, thyme, tomatoes, watermelons, winter squash, zucchini
Plant for fall: bearded irises, brussels sprouts, carrots, collard greens, lettuce, peas, snapdragons, swiss chard
July
Plant or sow outdoors: bermudagrass, celery, centipedegrass, cosmos, green onions, okra, peanuts, st. augustinegrass, zinnias, zoysiagrass
Plant for fall: azaleas, bearded irises, beets, broccoli, cabbages, carrots, cauliflower, clematis, collard greens, coneflowers, daylilies, hostas, hydrangeas, kale, lettuce, peas, radishes, roses, saffron, snapdragons, spinach, swiss chard, turnips
August
Plant or sow outdoors: bermudagrass, centipedegrass, st. augustinegrass, zoysiagrass
Plant for fall: azaleas, bearded irises, cabbages, cauliflower, clematis, coneflowers, crocuses, daffodils, daylilies, grass seed, hostas, hyacinths, hydrangeas, kale, lilies, ornamental alliums, peonies, radishes, roses, saffron, spinach, tulips
September
Plant for fall: crocuses, daffodils, garlic, hyacinths, lilies, ornamental alliums, peonies, tulips
Frost dates and zones by ZIP code in Eagle Mountain
All 2 of Eagle Mountain's main ZIP codes take their frost dates from Fairfield, so the dates on this page apply across the city. The hardiness zone is 6a in 84013, and 6b in 84005.
Planting dates for popular crops in Eagle Mountain
| Plant | Start indoors | Plant or sow outdoors | Fall planting |
|---|---|---|---|
| Tomatoes | Apr 10 to 24 | Jun 5 to 19 | — |
| Strawberries | — | Apr 21 to May 5 | — |
| Lettuce | Apr 7 to 21 | May 26 to Jun 9 | Jun 17 to Jul 22 |
| Cilantro | Apr 21 to May 5 | Jun 2 to 9 | — |
| Basil | Apr 21 to May 5 | Jun 9 to 16 | — |
| Potatoes | — | May 12 to 19 | — |
| Garlic | — | Apr 21 to May 5 | Sep 16 to 30 |
| Onions | Feb 10 to Mar 24 | May 5 to 19 | — |
| Cucumbers | May 12 to 26 | Jun 9 to 23 | — |
| Pumpkins | May 19 to Jun 2 | Jun 16 to 30 | — |
| Peppers | Mar 24 to Apr 21 | Jun 9 to 23 | — |
| Carrots | — | May 12 to Jun 2 | Jun 24 to Jul 15 |
| Sweet Potatoes | — | Jun 22 to 29 | — |
| Watermelons | May 5 to 19 | Jun 9 to 23 | — |
| Sweet Corn | — | Jun 2 to 16 | — |
| Green Beans | — | Jun 5 to 19 | — |
| Zucchini | May 12 to 26 | Jun 9 to 23 | — |
| Broccoli | Mar 17 to Apr 7 | May 5 to 19 | Jul 1 to 29 |
| Peas | — | Apr 21 to May 5 | Jun 24 to Jul 8 |
| Spinach | Apr 21 to 28 | May 26 to Jun 9 | Jul 8 to Aug 12 |
| Sunflowers | — | Jun 2 to 23 | — |
| Zinnias | Jun 12 to 19 | Jul 10 to 24 | — |
| Tulips | — | — | Aug 5 to Sep 30 |
| Daffodils | — | — | Aug 5 to Sep 16 |
| Grass Seed | — | Apr 21 to May 5 | Aug 5 to 19 |
Nearby cities
- Saratoga Springs, UT zone 7a, last frost May 2
- Lehi, UT zone 7a, last frost Apr 17
- Herriman, UT zone 7a, last frost May 2
- Draper, UT zone 7a, last frost Apr 18
- Orem, UT zone 7a, last frost Apr 17
- South Jordan, UT zone 7a, last frost Apr 18
Planting in UtahAbout zone 6bPrintable calendar for Eagle Mountain
Questions
When is the last frost in Eagle Mountain?
Around June 2 in a typical year, based on NOAA's 1991-2020 records for Fairfield. There is still a 1 in 10 chance of frost after June 24.
What planting zone is Eagle Mountain in?
USDA hardiness zone 6b (2023 map), with parts of the city in zone 6a and 7a. The zone tells you which perennials survive the winter; planting dates depend on frost dates instead.
When should I plant tomatoes in Eagle Mountain?
Start seeds indoors April 10 to 24 and set plants out June 5 to 19; the safest date to plant out is after June 24.
When is the first frost in Eagle Mountain?
Around September 16 in a typical year, and before September 1 about 1 year in 10.