Ashland, MO frost dates
How Ashland compares
- In 8 years out of 10, the last spring frost in Ashland falls between March 23 and April 21, a 29-day window. The first fall frost falls between October 16 and November 11.
- The median last frost is 5 days earlier than the Missouri median of Apr 12.
- Its 205-day growing season is longer than 80% of the 938 Missouri places with a regular frost season (state median 195 days).
- The last frost is 15 days earlier than the zone 6b median of Apr 22. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6b chart.
- The weather station records an average of 101 nights a year at or below 32°F.
- Compared with Columbia, MO, 20 km away, the last frost here is 2 days later than there and the growing season is 4 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 23 |
| 50% (median) | April 7 |
| 10% (safe for tender plants) | April 21 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 16 |
| 50% (median) | October 29 |
| 90% (late) | November 11 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Ashland, MO
Ashland, MO frost dates — last frost Apr 7, first frost Oct 29, zone 6b. whenisthelastfrost.com
When to plant vegetables in Ashland, MO
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 13 – Jan 27 | Mar 10 – Mar 24 | — | — |
| Peppers | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Eggplant | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Tomatoes | Feb 10 – Feb 24 | Apr 14 – Apr 28 | — | — |
| Lettuce | Feb 10 – Feb 24 | Mar 17 – Mar 31 | Mar 10 – Apr 14 | Sep 3 – Oct 1 |
| Kale | Feb 10 – Feb 24 | Mar 10 – Mar 24 | Mar 10 – Mar 24 | Aug 20 – Sep 10 |
| Broccoli | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 23 – Aug 13 |
| Cabbage | Feb 10 – Feb 24 | Mar 17 – Mar 31 | — | Jul 23 – Aug 13 |
| Cauliflower | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 23 – Aug 13 |
| Okra | Feb 24 – Mar 10 | Apr 28 – May 12 | Apr 28 – May 12 | — |
| Basil | Feb 24 – Mar 10 | Apr 14 – Apr 28 | — | — |
| Peas | — | — | Feb 24 – Mar 17 | Aug 6 – Aug 27 |
| Spinach | — | — | Feb 24 – Mar 17 | Sep 3 – Sep 24 |
| Radishes | — | — | Mar 3 – Apr 14 | Sep 17 – Oct 8 |
| Cucumbers | Mar 10 – Mar 17 | Apr 21 – Apr 28 | Apr 14 – Apr 28 | Aug 13 – Aug 27 |
| Zucchini & Summer Squash | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | Aug 20 – Sep 3 |
| Winter Squash & Pumpkins | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | — |
| Melons & Watermelon | Mar 10 – Mar 17 | Apr 21 – May 5 | — | — |
| Carrots | — | — | Mar 17 – Apr 14 | Aug 6 – Aug 20 |
| Beets | — | — | Mar 17 – Apr 14 | Aug 20 – Sep 3 |
| Potatoes | — | — | Mar 17 – Apr 7 | — |
| Swiss Chard | — | — | Mar 24 – Apr 21 | Aug 20 – Sep 3 |
| Cilantro | — | — | Mar 24 – Apr 14 | Sep 3 – Sep 24 |
| Green Beans | — | — | Apr 14 – May 5 | Aug 13 – Aug 27 |
| Sweet Corn | — | — | Apr 14 – Apr 28 | — |
| Sweet Potatoes | — | Apr 21 – May 12 | — | — |
| Garlic | — | — | — | Oct 15 – Nov 19 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Columbia Rgnl Ap, MO weather station, 4 km away (elevation 892 ft (272 m)).
Frost dates near Ashland
- Hartsburg Apr 7 · Oct 29
- New Bloomfield Apr 10 · Oct 26
- Mid Missouri Apr 7 · Oct 29
- Jamestown Apr 11 · Oct 25
- Columbia Apr 5 · Oct 31
- Holts Summit Apr 10 · Oct 26
- Centertown Apr 11 · Oct 25
- Jefferson City Apr 8 · Oct 31
- Fulton Apr 10 · Oct 24
- Lohman Apr 11 · Oct 25
Frequently asked questions
When is the last frost in Ashland, MO?
The median last spring frost in Ashland, MO is April 7. There is still about a 10% chance of frost after April 21, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Ashland, MO?
The median first fall frost is October 29, with about a 10% chance of frost before October 16.
How long is the growing season in Ashland, MO?
About 205 days between the median last spring frost and first fall frost.
What planting zone is Ashland, MO?
Ashland, MO is in USDA hardiness zone 6b.