Medford, Oregon planting calendar and frost dates
Medford is in USDA hardiness zone 8b. The last spring frost typically comes around May 6 and the first fall frost around October 8, giving about 154 frost-free days a year.
- Hardiness zone
- Zone 8b
- Typical last frost
- May 6
- Typical first frost
- October 8
- Frost-free season
- 154 days
Frost dates in Medford
Last spring frost
- April 20Risky: frost later than this in 9 years out of 10
- May 6Typical: a later frost in half of years
- May 27Safe: a later frost only 1 year in 10
First fall frost
- September 21Risky: frost earlier than this 1 year in 10
- October 8Typical: an earlier frost in half of years
- October 26Late: frost before this in 9 years out of 10
The growing season between the typical last and first frosts is about 154 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 26.
NOAA U.S. Climate Normals 1991-2020 for Ashland, 9 miles SSE of the city center and 199 feet lower. 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 Medford
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, chives, cilantro, collard greens, 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, celery, cilantro, eggplants, marigolds, nasturtiums, peppers, ranunculus, spinach, swiss chard, tomatoes
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, leeks, lettuce, onions, parsley, peas, poppies, potatoes, radishes, ranunculus, raspberries, rhubarb, roses, snapdragons, spinach, strawberries, swiss chard, turnips, wildflowers
May
Start indoors: basil, cantaloupes, cosmos, cucumbers, okra, pumpkins, watermelons, winter squash, zucchini
Plant or sow outdoors: asparagus, beets, carrots, chives, cilantro, dahlias, dill, figs, garden mums, ginger, gladioli, grapes, green onions, kentucky bluegrass, lavenders, leeks, lettuce, lilies, marigolds, mints, nasturtiums, oregano, parsley, perennial ryegrass, petunias, ranunculus, rosemary, roses, sage, snapdragons, spinach, sunflowers, sweet corn, sweet peas, swiss chard, tall fescue, thyme
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
July
Plant or sow outdoors: bermudagrass, celery, centipedegrass, cosmos, green onions, okra, peanuts, st. augustinegrass, sweet potatoes, zinnias, zoysiagrass
Plant for fall: bearded irises, beets, broccoli, brussels sprouts, cabbages, carrots, cauliflower, collard greens, lettuce, peas, radishes, snapdragons, spinach, swiss chard, turnips
August
Plant or sow outdoors: bermudagrass, centipedegrass, zoysiagrass
Plant for fall: azaleas, bearded irises, beets, broccoli, cabbages, carrots, cauliflower, clematis, coneflowers, crocuses, daffodils, daylilies, grass seed, hostas, hydrangeas, kale, lettuce, lilies, ornamental alliums, peonies, radishes, roses, saffron, snapdragons, spinach, swiss chard, tulips, turnips
September
Plant for fall: cabbages, cauliflower, crocuses, daffodils, daylilies, grass seed, hostas, hyacinths, kale, lilies, ornamental alliums, peonies, radishes, saffron, spinach, tulips
October
Plant for fall: crocuses, daffodils, garlic, hyacinths, lilies, ornamental alliums, peonies, tulips
Frost dates and zones by ZIP code in Medford
Medford's 3 main ZIP codes take their frost dates from 2 different NOAA stations: the typical last frost ranges from April 8 in 97501 to May 6 in 97504. Every one of them is in zone 8b.
Planting dates for popular crops in Medford
| Plant | Start indoors | Plant or sow outdoors | Fall planting |
|---|---|---|---|
| Tomatoes | Apr 12 to 26 | Jun 7 to 21 | — |
| Strawberries | — | Mar 25 to Apr 8 | — |
| Lettuce | Mar 11 to 25 | Apr 29 to May 13 | Jul 9 to Aug 13 |
| Cilantro | Mar 25 to Apr 8 | May 6 to 13 | — |
| Basil | Apr 19 to May 3 | Jun 7 to 14 | — |
| Potatoes | — | Apr 22 to 29 | — |
| Garlic | — | Mar 25 to Apr 8 | Oct 8 to 22 |
| Onions | Jan 14 to Feb 25 | Apr 8 to 22 | — |
| Cucumbers | May 10 to 24 | Jun 7 to 21 | — |
| Pumpkins | May 10 to 24 | Jun 7 to 21 | — |
| Peppers | Mar 22 to Apr 19 | Jun 7 to 21 | — |
| Carrots | — | Apr 15 to May 6 | Jul 16 to Aug 6 |
| Sweet Potatoes | — | Jun 27 to Jul 4 | — |
| Watermelons | May 3 to 17 | Jun 7 to 21 | — |
| Sweet Corn | — | May 6 to 20 | — |
| Green Beans | — | Jun 7 to 21 | — |
| Zucchini | May 10 to 24 | Jun 7 to 21 | — |
| Broccoli | Feb 18 to Mar 11 | Apr 8 to 22 | Jul 23 to Aug 20 |
| Peas | — | Mar 25 to Apr 8 | Jul 16 to 30 |
| Spinach | Mar 25 to Apr 1 | Apr 29 to May 13 | Jul 30 to Sep 3 |
| Sunflowers | — | May 6 to 27 | — |
| Zinnias | Jun 19 to 26 | Jul 17 to 31 | — |
| Tulips | — | — | Aug 27 to Oct 22 |
| Daffodils | — | — | Aug 27 to Oct 8 |
| Grass Seed | — | Mar 25 to Apr 8 | Aug 27 to Sep 10 |
Nearby cities
- Springfield, OR zone 8b, last frost Apr 11
- Eugene, OR zone 8b, last frost Apr 11
- Redding, CA zone 9b, last frost Feb 8
- Bend, OR zone 6b, last frost Jun 6
- Corvallis, OR zone 8b, last frost Apr 17
- Albany, OR zone 8b, last frost Apr 17
Planting in OregonAbout zone 8bPrintable calendar for Medford
Questions
When is the last frost in Medford?
Around May 6 in a typical year, based on NOAA's 1991-2020 records for Ashland. There is still a 1 in 10 chance of frost after May 27.
What planting zone is Medford in?
USDA hardiness zone 8b (2023 map). The zone tells you which perennials survive the winter; planting dates depend on frost dates instead.
When should I plant tomatoes in Medford?
Start seeds indoors April 12 to 26 and set plants out June 7 to 21.
When is the first frost in Medford?
Around October 8 in a typical year, and before September 21 about 1 year in 10.