Logan, Utah planting calendar and frost dates
Logan is in USDA hardiness zone 6a. The last spring frost typically comes around April 30 and the first fall frost around October 16, giving about 166 frost-free days a year.
- Hardiness zone
- Zone 6a
- Typical last frost
- April 30
- Typical first frost
- October 16
- Frost-free season
- 166 days
Frost dates in Logan
Last spring frost
- April 14Risky: frost later than this in 9 years out of 10
- April 30Typical: a later frost in half of years
- May 19Safe: a later frost only 1 year in 10
First fall frost
- October 1Risky: frost earlier than this 1 year in 10
- October 16Typical: an earlier frost in half of years
- October 29Late: frost before this in 9 years out of 10
The growing season between the typical last and first frosts is about 166 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 15 and returns around October 27.
NOAA U.S. Climate Normals 1991-2020 for Logan Utah St Univ, 1.8 miles SSE of the city center and 168 feet higher. 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 Logan
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, 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, kale, onions, peas, poppies, raspberries, rhubarb, strawberries, turnips, wildflowers
April
Start indoors: basil, cantaloupes, celery, cilantro, eggplants, marigolds, nasturtiums, peppers, ranunculus, tomatoes, watermelons
Plant or sow outdoors: asparagus, beets, black-eyed susans, blackberries, blueberries, broccoli, cabbages, carrots, cauliflower, chives, cilantro, collard greens, dahlias, dill, figs, garden mums, garlic, gladioli, grapes, grass seed, green onions, hollyhocks, kale, lavenders, leeks, lettuce, lilies, marigolds, mints, nasturtiums, onions, oregano, parsley, peas, petunias, poppies, potatoes, radishes, ranunculus, raspberries, rhubarb, rosemary, roses, sage, snapdragons, spinach, strawberries, sunflowers, sweet corn, swiss chard, thyme, turnips, wildflowers
May
Start indoors: cantaloupes, cosmos, cucumbers, okra, pumpkins, watermelons, winter squash, zucchini
Plant or sow outdoors: asparagus, basil, cantaloupes, chives, cilantro, cucumbers, dahlias, dill, eggplants, garden mums, ginger, gladioli, grapes, green beans, green onions, kentucky bluegrass, lavenders, lettuce, lilies, marigolds, mints, nasturtiums, oregano, parsley, peppers, perennial ryegrass, petunias, potatoes, pumpkins, ranunculus, rosemary, sage, 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, green beans, green onions, okra, peanuts, peppers, pumpkins, st. augustinegrass, sweet potatoes, tomatoes, watermelons, winter squash, zoysiagrass, zucchini
July
Plant or sow outdoors: bermudagrass, celery, centipedegrass, cosmos, green onions, okra, peanuts, st. augustinegrass, zinnias, zoysiagrass
Plant for fall: bearded irises, broccoli, brussels sprouts, carrots, collard greens, lettuce, peas, snapdragons, swiss chard
August
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
September
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
October
Plant for fall: crocuses, daffodils, garlic, hyacinths, lilies, ornamental alliums, peonies, tulips
Frost dates and zones by ZIP code in Logan
Logan's 3 main ZIP codes take their frost dates from 2 different NOAA stations: the typical last frost ranges from April 30 in 84341 to May 8 in 84335. Every one of them is in zone 6a.
Planting dates for popular crops in Logan
| Plant | Start indoors | Plant or sow outdoors | Fall planting |
|---|---|---|---|
| Tomatoes | Apr 5 to 19 | May 31 to Jun 14 | — |
| Strawberries | — | Mar 19 to Apr 2 | — |
| Lettuce | Mar 5 to 19 | Apr 23 to May 7 | Jul 17 to Aug 21 |
| Cilantro | Mar 19 to Apr 2 | Apr 30 to May 7 | — |
| Basil | Apr 12 to 26 | May 31 to Jun 7 | — |
| Potatoes | — | Apr 30 to May 7 | — |
| Garlic | — | Mar 19 to Apr 2 | Oct 16 to 30 |
| Onions | Jan 8 to Feb 19 | Apr 2 to 16 | — |
| Cucumbers | May 3 to 17 | May 31 to Jun 14 | — |
| Pumpkins | May 3 to 17 | May 31 to Jun 14 | — |
| Peppers | Mar 15 to Apr 12 | May 31 to Jun 14 | — |
| Carrots | — | Apr 9 to 30 | Jul 24 to Aug 14 |
| Sweet Potatoes | — | Jun 17 to 24 | — |
| Watermelons | Apr 26 to May 10 | May 31 to Jun 14 | — |
| Sweet Corn | — | Apr 30 to May 14 | — |
| Green Beans | — | May 31 to Jun 14 | — |
| Zucchini | May 3 to 17 | May 31 to Jun 14 | — |
| Broccoli | Feb 12 to Mar 5 | Apr 2 to 16 | Jul 31 to Aug 28 |
| Peas | — | Mar 19 to Apr 2 | Jul 24 to Aug 7 |
| Spinach | Mar 19 to 26 | Apr 23 to May 7 | Aug 7 to Sep 11 |
| Sunflowers | — | Apr 30 to May 21 | — |
| Zinnias | Jun 3 to 10 | Jul 1 to 15 | — |
| Tulips | — | — | Sep 4 to Oct 30 |
| Daffodils | — | — | Sep 4 to Oct 16 |
| Grass Seed | — | Mar 19 to Apr 2 | Sep 4 to 18 |
Nearby cities
- Ogden, UT zone 7a, last frost Apr 22
- Layton, UT zone 7a, last frost Apr 22
- Salt Lake City, UT zone 7b, last frost Apr 8
- Millcreek, UT zone 6b, last frost Apr 8
- West Valley City, UT zone 7b, last frost Apr 8
- Taylorsville, UT zone 7b, last frost Apr 8
Planting in UtahAbout zone 6aPrintable calendar for Logan
Questions
When is the last frost in Logan?
Around April 30 in a typical year, based on NOAA's 1991-2020 records for Logan Utah St Univ. There is still a 1 in 10 chance of frost after May 19.
What planting zone is Logan in?
USDA hardiness zone 6a (2023 map). The zone tells you which perennials survive the winter; planting dates depend on frost dates instead.
When should I plant tomatoes in Logan?
Start seeds indoors April 5 to 19 and set plants out May 31 to June 14.
When is the first frost in Logan?
Around October 16 in a typical year, and before October 1 about 1 year in 10.