Prescott Valley, Arizona planting calendar and frost dates
Prescott Valley is in USDA hardiness zone 7b. The last spring frost typically comes around April 20 and the first fall frost around October 27, giving about 188 frost-free days a year.
- Typical last frost
- April 20
- Typical first frost
- October 27
- Frost-free season
- 188 days
Frost dates in Prescott Valley
Last spring frost
- April 4Risky: frost later than this in 9 years out of 10
- April 20Typical: a later frost in half of years
- May 7Safe: a later frost only 1 year in 10
First fall frost
- October 13Risky: frost earlier than this 1 year in 10
- October 27Typical: an earlier frost in half of years
- November 10Late: frost before this in 9 years out of 10
The growing season between the typical last and first frosts is about 188 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 1 and returns around November 8.
NOAA U.S. Climate Normals 1991-2020 for Prescott Love Fld, 6.3 miles NW 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 Prescott Valley
January
Start indoors: collard greens, leeks, onions, petunias, ranunculus
February
Start indoors: black-eyed susans, broccoli, cabbages, cauliflower, chives, collard greens, ginger, kale, leeks, lettuce, marigolds, onions, oregano, parsley, peppers, petunias, ranunculus, rosemary, sage, snapdragons
March
Start indoors: basil, black-eyed susans, cabbages, cauliflower, celery, chives, cilantro, collard greens, eggplants, ginger, lettuce, marigolds, nasturtiums, peppers, ranunculus, sage, snapdragons, spinach, swiss chard, tomatoes
Plant or sow outdoors: asparagus, beets, black-eyed susans, blackberries, blueberries, broccoli, cabbages, carrots, cauliflower, chives, cilantro, collard greens, figs, garlic, gladioli, grapes, grass seed, green onions, hollyhocks, kale, leeks, lettuce, onions, parsley, peas, poppies, potatoes, radishes, ranunculus, raspberries, rhubarb, roses, spinach, strawberries, swiss chard, turnips, wildflowers
April
Start indoors: basil, cantaloupes, cosmos, cucumbers, okra, pumpkins, ranunculus, watermelons, winter squash, zucchini
Plant or sow outdoors: asparagus, beets, black-eyed susans, blackberries, broccoli, cabbages, carrots, cauliflower, chives, cilantro, dahlias, dill, figs, garden mums, ginger, gladioli, grapes, green onions, kentucky bluegrass, lavenders, leeks, lettuce, lilies, marigolds, mints, nasturtiums, onions, oregano, parsley, perennial ryegrass, petunias, potatoes, radishes, ranunculus, rosemary, roses, sage, snapdragons, spinach, sunflowers, sweet corn, sweet peas, swiss chard, tall fescue, thyme, turnips
May
Start indoors: zinnias
Plant or sow outdoors: asparagus, basil, bermudagrass, cantaloupes, celery, centipedegrass, cosmos, cucumbers, eggplants, garden mums, ginger, grapes, green beans, green onions, kentucky bluegrass, lavenders, lilies, marigolds, mints, nasturtiums, okra, oregano, parsley, peanuts, peppers, perennial ryegrass, petunias, pumpkins, rosemary, sage, st. augustinegrass, sunflowers, sweet corn, sweet peas, sweet potatoes, tall fescue, thyme, tomatoes, watermelons, winter squash, zoysiagrass, zucchini
June
Plant or sow outdoors: bermudagrass, celery, centipedegrass, cosmos, green onions, okra, peanuts, st. augustinegrass, sweet potatoes, zinnias, zoysiagrass
July
Plant for fall: brussels sprouts, collard greens, lettuce, swiss chard
August
Plant for fall: bearded irises, beets, broccoli, cabbages, carrots, cauliflower, collard greens, daylilies, kale, lettuce, peas, radishes, snapdragons, spinach, swiss chard, turnips
September
Plant for fall: azaleas, bearded irises, beets, broccoli, cabbages, cauliflower, clematis, coneflowers, crocuses, daffodils, daylilies, grass seed, hostas, hyacinths, hydrangeas, kale, kentucky bluegrass, lettuce, lilies, ornamental alliums, peonies, perennial ryegrass, radishes, roses, saffron, snapdragons, spinach, tall fescue, tulips, turnips
October
Plant for fall: crocuses, daffodils, daylilies, garlic, hyacinths, lilies, ornamental alliums, peonies, tulips
November
Plant for fall: crocuses, garlic, hyacinths, ornamental alliums, tulips
December
Start indoors: onions
Frost dates and zones by ZIP code in Prescott Valley
Prescott Valley's 3 main ZIP codes take their frost dates from 2 different NOAA stations: the typical last frost ranges from March 26 in 86327 to April 20 in 86315. The hardiness zone is 7b in 86314, and 8a in 86315, 86327.
Planting dates for popular crops in Prescott Valley
| Plant | Start indoors | Plant or sow outdoors | Fall planting |
|---|---|---|---|
| Tomatoes | Mar 16 to 30 | May 11 to 25 | — |
| Strawberries | — | Mar 9 to 23 | — |
| Lettuce | Feb 23 to Mar 9 | Apr 13 to 27 | Jul 28 to Sep 1 |
| Cilantro | Mar 9 to 23 | Apr 20 to 27 | — |
| Basil | Mar 23 to Apr 6 | May 11 to 18 | — |
| Potatoes | — | Mar 30 to Apr 6 | — |
| Garlic | — | Mar 9 to 23 | Oct 27 to Nov 10 |
| Onions | Dec 29 to Feb 9 | Mar 23 to Apr 6 | — |
| Cucumbers | Apr 13 to 27 | May 11 to 25 | — |
| Pumpkins | Apr 13 to 27 | May 11 to 25 | — |
| Peppers | Feb 23 to Mar 23 | May 11 to 25 | — |
| Carrots | — | Mar 30 to Apr 20 | Aug 4 to 25 |
| Sweet Potatoes | — | May 25 to Jun 1 | — |
| Watermelons | Apr 6 to 20 | May 11 to 25 | — |
| Sweet Corn | — | Apr 20 to May 4 | — |
| Green Beans | — | May 11 to 25 | — |
| Zucchini | Apr 13 to 27 | May 11 to 25 | — |
| Broccoli | Feb 2 to 23 | Mar 23 to Apr 6 | Aug 11 to Sep 8 |
| Peas | — | Mar 9 to 23 | Aug 4 to 18 |
| Spinach | Mar 9 to 16 | Apr 13 to 27 | Aug 18 to Sep 22 |
| Sunflowers | — | Apr 20 to May 11 | — |
| Zinnias | May 13 to 20 | Jun 10 to 24 | — |
| Tulips | — | — | Sep 15 to Nov 10 |
| Daffodils | — | — | Sep 15 to Oct 27 |
| Grass Seed | — | Mar 9 to 23 | Sep 15 to 29 |
Nearby cities
- Peoria, AZ zone 9b, last frost Jan 20
- Flagstaff, AZ zone 6b, last frost Jun 4
- Surprise, AZ zone 9b, last frost Jan 20
- Scottsdale, AZ zone 9b
- Phoenix, AZ zone 9b
- Glendale, AZ zone 9b, last frost Jan 20
Planting in ArizonaAbout zone 7bPrintable calendar for Prescott Valley
Questions
When is the last frost in Prescott Valley?
Around April 20 in a typical year, based on NOAA's 1991-2020 records for Prescott Love Fld. There is still a 1 in 10 chance of frost after May 7.
What planting zone is Prescott Valley in?
USDA hardiness zone 7b (2023 map), with parts of the city in zone 8a. The zone tells you which perennials survive the winter; planting dates depend on frost dates instead.
When should I plant tomatoes in Prescott Valley?
Start seeds indoors March 16 to 30 and set plants out May 11 to 25.
When is the first frost in Prescott Valley?
Around October 27 in a typical year, and before October 13 about 1 year in 10.