Frost Dates for Rolla, MO 65409
Rolla has 2 ZIP codes. The Rolla, MO frost page lists all of them with their dates.
Last spring frost April 9 · First fall frost October 24 · 198 frost-free days · USDA Zone 6b
Long season: 198 frost-free days. Spring frost risk spans March 27–April 24 (28 days). Fall frost risk spans October 9–November 7 (29 days).
Frost probability for 65409
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 24 | April 9 | March 27 |
| Fall (first frost) | October 9 | October 24 | November 7 |
Dates come from NOAA 1971–2000 freeze probabilities at VICHY ROLLA NATL AP (20.1 km away); the 50% date is the median year.
Which crops fit a 198-day season in Rolla
In Rolla (198 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Mar 5 | Apr 23–Apr 30 | 156 | fits: 80 days to maturity, 156 available after Apr 23. | Jun 24 |
| Pepper | Feb 26 | Apr 23–Apr 30 | 156 | fits: 75 days to maturity, 156 available after Apr 23. | Jun 29 |
| Lettuce | Feb 12 | Mar 12–Mar 19 | 233 | two-plantings: Plant Mar 12 and again by Sep 2; both mature before Oct 31. | Sep 2 |
| Carrots | — | Mar 19–Mar 26 | 240 | fits: 70 days to maturity, 240 available after Mar 19. | Aug 22 |
| Cucumber | Mar 19 | Apr 23–Apr 30 | 170 | two-plantings: Plant Apr 23 and again by Jul 28; both mature before Oct 10. | Jul 28 |
| Beans | — | Apr 16–Apr 30 | 184 | two-plantings: Plant Apr 16 and again by Aug 4; both mature before Oct 17. | Aug 4 |
| Peas | — | Feb 12–Apr 23 | 261 | fits: 65 days to maturity, 261 available after Feb 12. | Aug 13 |
| Zucchini | Mar 26 | Apr 23–Apr 30 | 170 | two-plantings: Plant Apr 23 and again by Aug 2; both mature before Oct 10. | Aug 2 |
| Onion | Jan 15 | Mar 12–Mar 26 | 233 | fits: 100 days to maturity, 233 available after Mar 12. | — |
| Spinach | — | Feb 12–Apr 2 | 275 | two-plantings: Plant Feb 12 and again by Sep 21; both mature before Nov 14. | Sep 21 |
| Kale | Jan 29 | Mar 12–Mar 26 | 247 | two-plantings: Plant Mar 12 and again by Sep 6; both mature before Nov 14. | Sep 6 |
| Broccoli | Feb 12 | Mar 12–Mar 26 | 233 | fits: 80 days to maturity, 233 available after Mar 12. | Jul 29 |
| Cabbage | Feb 12 | Mar 12–Mar 26 | 247 | fits: 70 days to maturity, 247 available after Mar 12. | Aug 22 |
| Radish | — | Feb 12–May 7 | 261 | two-plantings: Plant Feb 12 and again by Sep 22; both mature before Oct 31. | Sep 22 |
| Beets | — | Feb 12–May 7 | 261 | two-plantings: Plant Feb 12 and again by Aug 23; both mature before Oct 31. | Aug 23 |
| Potatoes | — | Mar 26–Apr 2 | 219 | fits: 90 days to maturity, 219 available after Mar 26. | — |
| Garlic | — | Oct 24 | 303 | overwinter: Plant Oct 24 to Nov 14; harvest the following summer. | Nov 14 |
| Strawberry | — | Mar 5–Apr 30 | 254 | perennial: A perennial: plant Mar 5; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 12 | Apr 16–Apr 23 | 170 | fits: 75 days to maturity, 170 available after Apr 16. | Jul 6 |
| Pumpkin | Mar 26 | Apr 23–Apr 23 | 163 | fits: 100 days to maturity, 163 available after Apr 23. | Jun 11 |
| Cauliflower | Feb 26 | Apr 2–Apr 16 | 212 | fits: 75 days to maturity, 212 available after Apr 2. | Aug 3 |
| Swiss Chard | Feb 12 | Mar 26–Mar 26 | 219 | two-plantings: Plant Mar 26 and again by Aug 23; both mature before Oct 31. | Aug 23 |
| Arugula | — | Feb 12–May 7 | 275 | two-plantings: Plant Feb 12 and again by Sep 21; both mature before Nov 14. | Sep 21 |
| Brussel Sprouts | Feb 12 | Mar 12–Mar 26 | 247 | fits: 100 days to maturity, 247 available after Mar 12. | Jul 23 |
| Butternut Squash | Mar 26 | Apr 23–Apr 30 | 163 | fits: 100 days to maturity, 163 available after Apr 23. | Jun 11 |
| Eggplant | Feb 19 | Apr 23–Apr 30 | 156 | fits: 70 days to maturity, 156 available after Apr 23. | Jul 4 |
| Okra | Mar 12 | Apr 16–Apr 23 | 177 | two-plantings: Plant Apr 16 and again by Aug 2; both mature before Oct 10. | Aug 2 |
| Basil | Mar 5 | Apr 30–Apr 30 | 163 | two-plantings: Plant Apr 30 and again by Jul 28; both mature before Oct 10. | Jul 28 |
| Cilantro | — | Mar 12–Apr 2 | 233 | two-plantings: Plant Mar 12 and again by Aug 28; both mature before Oct 31. | Aug 28 |
| Parsley | Jan 29 | Apr 16–Apr 23 | 198 | fits: 70 days to maturity, 198 available after Apr 16. | Aug 8 |
| Celery | Jan 29 | Apr 16–Apr 30 | 198 | fits: 120 days to maturity, 198 available after Apr 16. | Jun 19 |
| Scallions | Jan 29 | Mar 12–Mar 26 | 247 | two-plantings: Plant Mar 12 and again by Sep 1; both mature before Nov 14. | Sep 1 |
| Turnip | — | Mar 12–Mar 26 | 247 | two-plantings: Plant Mar 12 and again by Sep 11; both mature before Nov 14. | Sep 11 |
| Kohlrabi | — | Feb 26–Mar 12 | 261 | two-plantings: Plant Feb 26 and again by Sep 6; both mature before Nov 14. | Sep 6 |
| Bok Choy | Mar 12 | Apr 2–Apr 9 | 212 | two-plantings: Plant Apr 2 and again by Sep 2; both mature before Oct 31. | Sep 2 |
| Collards | Jan 29 | Mar 12–Mar 26 | 247 | two-plantings: Plant Mar 12 and again by Sep 1; both mature before Nov 14. | Sep 1 |
| Cantaloupe | Mar 26 | Apr 23–Apr 30 | 156 | fits: 85 days to maturity, 156 available after Apr 23. | Jun 19 |
| Chives | Jan 15 | Apr 16–Apr 23 | 212 | fits: 90 days to maturity, 212 available after Apr 16. | — |
| Dill | — | Feb 12–May 7 | 261 | two-plantings: Plant Feb 12 and again by Aug 23; both mature before Oct 31. | Aug 23 |
| Oregano | Jan 29 | Apr 16–Apr 23 | 212 | fits: 80 days to maturity, 212 available after Apr 16. | — |
| Rosemary | Jan 15 | Apr 16–Apr 23 | 198 | fits: 80 days to maturity, 198 available after Apr 16. | — |
| Sage | Feb 12 | Apr 16–Apr 23 | 212 | fits: 75 days to maturity, 212 available after Apr 16. | — |
| Thyme | Jan 29 | Apr 16–Apr 23 | 212 | fits: 90 days to maturity, 212 available after Apr 16. | — |
| Calendula | Feb 26 | Mar 26–Apr 9 | 219 | two-plantings: Plant Mar 26 and again by Aug 28; both mature before Oct 31. | Aug 28 |
| Cosmos | Mar 12 | Apr 9–Apr 23 | 184 | two-plantings: Plant Apr 9 and again by Jul 28; both mature before Oct 10. | Jul 28 |
| Lavender | Jan 15 | Apr 9–Apr 23 | 219 | fits: 90 days to maturity, 219 available after Apr 9. | — |
| Marigolds | Feb 26 | Apr 9–Apr 16 | 184 | two-plantings: Plant Apr 9 and again by Aug 7; both mature before Oct 10. | Aug 7 |
| Melons | Mar 26 | Apr 23–Apr 30 | 156 | fits: 85 days to maturity, 156 available after Apr 23. | Jun 19 |
| Mint | — | Apr 9–Apr 23 | 219 | fits: 90 days to maturity, 219 available after Apr 9. | — |
| Nasturtiums | Mar 12 | Apr 9–Apr 16 | 184 | two-plantings: Plant Apr 9 and again by Aug 2; both mature before Oct 10. | Aug 2 |
| Pole Beans | — | Apr 16–Apr 30 | 177 | fits: 65 days to maturity, 177 available after Apr 16. | Jul 23 |
| Spaghetti Squash | Mar 26 | Apr 23–Apr 30 | 163 | fits: 90 days to maturity, 163 available after Apr 23. | Jun 21 |
| Sunflowers | — | Apr 9–Apr 23 | 184 | fits: 70 days to maturity, 184 available after Apr 9. | Jul 18 |
| Tomatillos | Feb 12 | Apr 16–Apr 23 | 163 | fits: 75 days to maturity, 163 available after Apr 16. | Jun 29 |
| Watermelon | Mar 26 | Apr 16–Apr 23 | 163 | fits: 80 days to maturity, 163 available after Apr 16. | Jun 24 |
| Yellow Squash | Mar 26 | Apr 23–Apr 30 | 170 | two-plantings: Plant Apr 23 and again by Aug 2; both mature before Oct 10. | Aug 2 |
| Zinnias | Mar 12 | Apr 9–Apr 23 | 184 | two-plantings: Plant Apr 9 and again by Jul 28; both mature before Oct 10. | Jul 28 |
Month by month in Rolla
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 15), Lavender (Jan 15), Onion (Jan 15), Rosemary (Jan 15), Celery (Jan 29), Collards (Jan 29), +5 more. |
| February | Start indoors: Broccoli (Feb 12), Brussel Sprouts (Feb 12), Cabbage (Feb 12), Lettuce (Feb 12), Sage (Feb 12), Swiss Chard (Feb 12), +6 more. Direct sow from: Arugula (Feb 12), Beets (Feb 12), Dill (Feb 12), Peas (Feb 12), Radish (Feb 12), Spinach (Feb 12), +1 more. |
| March | Start indoors: Basil (Mar 5), Tomato (Mar 5), Bok Choy (Mar 12), Corn (Mar 12), Cosmos (Mar 12), Nasturtiums (Mar 12), +11 more. Direct sow from: Cilantro (Mar 12), Turnip (Mar 12), Carrots (Mar 19), Potatoes (Mar 26). Transplant from: Broccoli (Mar 12), Brussel Sprouts (Mar 12), Cabbage (Mar 12), Collards (Mar 12), Kale (Mar 12), Lettuce (Mar 12), +4 more. Plant: Strawberry (Mar 5). |
| April | Direct sow from: Sunflowers (Apr 9), Beans (Apr 16), Pole Beans (Apr 16). Transplant from: Bok Choy (Apr 2), Cauliflower (Apr 2), Cosmos (Apr 9), Lavender (Apr 9), Marigolds (Apr 9), Mint (Apr 9), +25 more. Last frost around April 9. |
| May | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| June | Last sowing dates: Butternut Squash (Jun 11), Pumpkin (Jun 11), Cantaloupe (Jun 19), Celery (Jun 19), Melons (Jun 19), Spaghetti Squash (Jun 21), +4 more. |
| July | Last sowing dates: Eggplant (Jul 4), Corn (Jul 6), Sunflowers (Jul 18), Brussel Sprouts (Jul 23), Pole Beans (Jul 23), Basil (Jul 28), +4 more. |
| August | Last sowing dates: Nasturtiums (Aug 2), Okra (Aug 2), Yellow Squash (Aug 2), Zucchini (Aug 2), Cauliflower (Aug 3), Beans (Aug 4), +10 more. |
| September | Last sowing dates: Collards (Sep 1), Scallions (Sep 1), Bok Choy (Sep 2), Lettuce (Sep 2), Kale (Sep 6), Kohlrabi (Sep 6), +4 more. |
| October | Direct sow from: Garlic (Oct 24). First frost around October 24. |
| November | Last sowing dates: Garlic (Nov 14). |
| December | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
Frequently Asked Questions
What is the last frost date for Rolla, MO (ZIP 65409)?
The median last spring frost date for Rolla, MO (ZIP code 65409) is around April 9. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before March 27; one in ten it runs past April 24.
What is the first fall frost date in Rolla, MO?
The median first fall frost date for Rolla, MO is around October 24. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around October 9 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Rolla, MO?
The frost-free growing season in Rolla is about 198 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Rolla (198 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Rolla, MO?
Rolla, MO is in USDA hardiness zone 6b (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Rolla, MO?
Start tomatoes indoors Mar 5 and plant out Apr 23 in Rolla. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Rolla?
Two: plant Mar 12 and again by Sep 2; both mature before Oct 31.
When do I plant garlic in Rolla?
Oct 24 to Nov 14; it overwinters and is ready the following summer.
Can I get two tomato crops in Rolla?
Yes: plant out Apr 23 for a summer crop, and set out a second round of transplants by Jun 24 for a fall crop.
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