Hartville, MO frost dates
Last spring frostApr 15median date
First fall frostOct 22median date
Growing season190 daysfrost-free
Hardiness zone6bZone 6b
How Hartville compares
- In 8 years out of 10, the last spring frost in Hartville falls between March 29 and May 2, a 34-day window. The first fall frost falls between October 6 and November 5.
- The median last frost is 3 days later than the Missouri median of Apr 12.
- Its 190-day growing season is longer than 31% of the 938 Missouri places with a regular frost season (state median 195 days).
- The last frost is 7 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 100 nights a year at or below 32°F.
- Compared with Springfield, MO, 70 km away, the last frost here is 11 days later than there and the growing season is 16 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 29 |
| 50% (median) | April 15 |
| 10% (safe for tender plants) | May 2 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 6 |
| 50% (median) | October 22 |
| 90% (late) | November 5 |
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 Hartville, MO
Hartville, MO frost dates — last frost Apr 15, first frost Oct 22, zone 6b. whenisthelastfrost.com
Crop
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Start indoors: Jan 21 to Feb 4Transplant outside: Mar 18 to Apr 1
Start indoors: Feb 4 to Feb 18Transplant outside: Apr 29 to May 13
Start indoors: Feb 4 to Feb 18Transplant outside: Apr 29 to May 13
Start indoors: Feb 18 to Mar 4Transplant outside: Apr 22 to May 6
Start indoors: Feb 18 to Mar 4Transplant outside: Mar 25 to Apr 8Sow outdoors: Mar 18 to Apr 22Plant for fall: Aug 27 to Sep 24
Start indoors: Feb 18 to Mar 4Transplant outside: Mar 18 to Apr 1Sow outdoors: Mar 18 to Apr 1Plant for fall: Aug 13 to Sep 3
Start indoors: Feb 18 to Mar 4Transplant outside: Apr 1 to Apr 15Plant for fall: Jul 16 to Aug 6
Start indoors: Feb 18 to Mar 4Transplant outside: Mar 25 to Apr 8Plant for fall: Jul 16 to Aug 6
Start indoors: Feb 18 to Mar 4Transplant outside: Apr 1 to Apr 15Plant for fall: Jul 16 to Aug 6
Start indoors: Mar 4 to Mar 18Transplant outside: May 6 to May 20Sow outdoors: May 6 to May 20
Start indoors: Mar 4 to Mar 18Transplant outside: Apr 22 to May 6
Sow outdoors: Mar 4 to Mar 25Plant for fall: Jul 30 to Aug 20
Sow outdoors: Mar 4 to Mar 25Plant for fall: Aug 27 to Sep 17
Sow outdoors: Mar 11 to Apr 22Plant for fall: Sep 10 to Oct 1
Start indoors: Mar 18 to Mar 25Transplant outside: Apr 29 to May 6Sow outdoors: Apr 22 to May 6Plant for fall: Aug 6 to Aug 20
Start indoors: Mar 18 to Mar 25Sow outdoors: Apr 22 to May 6Plant for fall: Aug 13 to Aug 27
Start indoors: Mar 18 to Mar 25Sow outdoors: Apr 22 to May 6
Start indoors: Mar 18 to Mar 25Transplant outside: Apr 29 to May 13
Sow outdoors: Mar 25 to Apr 22Plant for fall: Jul 30 to Aug 13
Sow outdoors: Mar 25 to Apr 22Plant for fall: Aug 13 to Aug 27
Sow outdoors: Mar 25 to Apr 15
Sow outdoors: Apr 1 to Apr 29Plant for fall: Aug 13 to Aug 27
Sow outdoors: Apr 1 to Apr 22Plant for fall: Aug 27 to Sep 17
Sow outdoors: Apr 22 to May 13Plant for fall: Aug 6 to Aug 20
Sow outdoors: Apr 22 to May 6
Transplant outside: Apr 29 to May 20
Plant for fall: Oct 8 to Nov 12
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Hartville, MO
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 21 – Feb 4 | Mar 18 – Apr 1 | — | — |
| Peppers | Feb 4 – Feb 18 | Apr 29 – May 13 | — | — |
| Eggplant | Feb 4 – Feb 18 | Apr 29 – May 13 | — | — |
| Tomatoes | Feb 18 – Mar 4 | Apr 22 – May 6 | — | — |
| Lettuce | Feb 18 – Mar 4 | Mar 25 – Apr 8 | Mar 18 – Apr 22 | Aug 27 – Sep 24 |
| Kale | Feb 18 – Mar 4 | Mar 18 – Apr 1 | Mar 18 – Apr 1 | Aug 13 – Sep 3 |
| Broccoli | Feb 18 – Mar 4 | Apr 1 – Apr 15 | — | Jul 16 – Aug 6 |
| Cabbage | Feb 18 – Mar 4 | Mar 25 – Apr 8 | — | Jul 16 – Aug 6 |
| Cauliflower | Feb 18 – Mar 4 | Apr 1 – Apr 15 | — | Jul 16 – Aug 6 |
| Okra | Mar 4 – Mar 18 | May 6 – May 20 | May 6 – May 20 | — |
| Basil | Mar 4 – Mar 18 | Apr 22 – May 6 | — | — |
| Peas | — | — | Mar 4 – Mar 25 | Jul 30 – Aug 20 |
| Spinach | — | — | Mar 4 – Mar 25 | Aug 27 – Sep 17 |
| Radishes | — | — | Mar 11 – Apr 22 | Sep 10 – Oct 1 |
| Cucumbers | Mar 18 – Mar 25 | Apr 29 – May 6 | Apr 22 – May 6 | Aug 6 – Aug 20 |
| Zucchini & Summer Squash | Mar 18 – Mar 25 | — | Apr 22 – May 6 | Aug 13 – Aug 27 |
| Winter Squash & Pumpkins | Mar 18 – Mar 25 | — | Apr 22 – May 6 | — |
| Melons & Watermelon | Mar 18 – Mar 25 | Apr 29 – May 13 | — | — |
| Carrots | — | — | Mar 25 – Apr 22 | Jul 30 – Aug 13 |
| Beets | — | — | Mar 25 – Apr 22 | Aug 13 – Aug 27 |
| Potatoes | — | — | Mar 25 – Apr 15 | — |
| Swiss Chard | — | — | Apr 1 – Apr 29 | Aug 13 – Aug 27 |
| Cilantro | — | — | Apr 1 – Apr 22 | Aug 27 – Sep 17 |
| Green Beans | — | — | Apr 22 – May 13 | Aug 6 – Aug 20 |
| Sweet Corn | — | — | Apr 22 – May 6 | — |
| Sweet Potatoes | — | Apr 29 – May 20 | — | — |
| Garlic | — | — | — | Oct 8 – Nov 12 |
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 Grovespring 1ne, MO weather station, 16 km away (elevation 1,388 ft (423 m)).
Frost dates near Hartville
- Mansfield Apr 11 · Oct 26
- Macomb Apr 11 · Oct 26
- Graff Apr 11 · Oct 28
- Mountain Grove Apr 11 · Oct 28
- Norwood Apr 11 · Oct 26
- Grovespring Apr 15 · Oct 22
- Seymour Apr 23 · Oct 17
- Niangua Apr 15 · Oct 22
- Huggins Apr 11 · Oct 28
- Lynchburg Apr 15 · Oct 22
Frequently asked questions
When is the last frost in Hartville, MO?
The median last spring frost in Hartville, MO is April 15. There is still about a 10% chance of frost after May 2, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Hartville, MO?
The median first fall frost is October 22, with about a 10% chance of frost before October 6.
How long is the growing season in Hartville, MO?
About 190 days between the median last spring frost and first fall frost.
What planting zone is Hartville, MO?
Hartville, MO is in USDA hardiness zone 6b.