Frost Dates for Tulsa, OK 74108
Tulsa has 29 ZIP codes. The Tulsa, OK frost page lists all of them with their dates.
Last spring frost April 2 · First fall frost October 28 · 209 frost-free days · USDA Zone 7b
ZIP 74108 has about 7,320 people, one of 29 ZIP codes in Tulsa.
Long season: 209 frost-free days. Spring frost risk spans March 19–April 16 (28 days). Fall frost risk spans October 13–November 12 (30 days).
Frost probability for 74108
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 16 | April 2 | March 19 |
| Fall (first frost) | October 13 | October 28 | November 12 |
Dates come from NOAA 1971–2000 freeze probabilities at BIXBY (20.0 km away); the 50% date is the median year.
Which crops fit a 209-day season in Tulsa
In Tulsa (209 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 | Feb 26 | Apr 16–Apr 23 | 167 | fits: 80 days to maturity, 167 available after Apr 16. | Jun 28 |
| Pepper | Feb 19 | Apr 16–Apr 23 | 167 | fits: 75 days to maturity, 167 available after Apr 16. | Jul 3 |
| Lettuce | Feb 5 | Mar 5–Mar 12 | 244 | two-plantings: Plant Mar 5 and again by Sep 6; both mature before Nov 4. | Sep 6 |
| Carrots | — | Mar 12–Mar 19 | 251 | fits: 70 days to maturity, 251 available after Mar 12. | Aug 26 |
| Cucumber | Mar 12 | Apr 16–Apr 23 | 181 | two-plantings: Plant Apr 16 and again by Aug 1; both mature before Oct 14. | Aug 1 |
| Beans | — | Apr 9–Apr 23 | 195 | two-plantings: Plant Apr 9 and again by Aug 8; both mature before Oct 21. | Aug 8 |
| Peas | — | Feb 5–Apr 16 | 272 | fits: 65 days to maturity, 272 available after Feb 5. | Aug 17 |
| Zucchini | Mar 19 | Apr 16–Apr 23 | 181 | two-plantings: Plant Apr 16 and again by Aug 6; both mature before Oct 14. | Aug 6 |
| Onion | Jan 8 | Mar 5–Mar 19 | 244 | fits: 100 days to maturity, 244 available after Mar 5. | — |
| Spinach | — | Feb 5–Mar 26 | 286 | two-plantings: Plant Feb 5 and again by Sep 25; both mature before Nov 18. | Sep 25 |
| Kale | Jan 22 | Mar 5–Mar 19 | 258 | two-plantings: Plant Mar 5 and again by Sep 10; both mature before Nov 18. | Sep 10 |
| Broccoli | Feb 5 | Mar 5–Mar 19 | 244 | fits: 80 days to maturity, 244 available after Mar 5. | Aug 2 |
| Cabbage | Feb 5 | Mar 5–Mar 19 | 258 | fits: 70 days to maturity, 258 available after Mar 5. | Aug 26 |
| Radish | — | Feb 5–Apr 30 | 272 | two-plantings: Plant Feb 5 and again by Sep 26; both mature before Nov 4. | Sep 26 |
| Beets | — | Feb 5–Apr 30 | 272 | two-plantings: Plant Feb 5 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Potatoes | — | Mar 19–Mar 26 | 230 | fits: 90 days to maturity, 230 available after Mar 19. | — |
| Garlic | — | Oct 28 | 314 | overwinter: Plant Oct 28 to Nov 18; harvest the following summer. | Nov 18 |
| Strawberry | — | Feb 26–Apr 23 | 265 | perennial: A perennial: plant Feb 26; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 5 | Apr 9–Apr 16 | 181 | fits: 75 days to maturity, 181 available after Apr 9. | Jul 10 |
| Pumpkin | Mar 19 | Apr 16–Apr 16 | 174 | fits: 100 days to maturity, 174 available after Apr 16. | Jun 15 |
| Cauliflower | Feb 19 | Mar 26–Apr 9 | 223 | fits: 75 days to maturity, 223 available after Mar 26. | Aug 7 |
| Swiss Chard | Feb 5 | Mar 19–Mar 19 | 230 | two-plantings: Plant Mar 19 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Arugula | — | Feb 5–Apr 30 | 286 | two-plantings: Plant Feb 5 and again by Sep 25; both mature before Nov 18. | Sep 25 |
| Brussel Sprouts | Feb 5 | Mar 5–Mar 19 | 258 | fits: 100 days to maturity, 258 available after Mar 5. | Jul 27 |
| Butternut Squash | Mar 19 | Apr 16–Apr 23 | 174 | fits: 100 days to maturity, 174 available after Apr 16. | Jun 15 |
| Eggplant | Feb 12 | Apr 16–Apr 23 | 167 | fits: 70 days to maturity, 167 available after Apr 16. | Jul 8 |
| Okra | Mar 5 | Apr 9–Apr 16 | 188 | two-plantings: Plant Apr 9 and again by Aug 6; both mature before Oct 14. | Aug 6 |
| Basil | Feb 26 | Apr 23–Apr 23 | 174 | two-plantings: Plant Apr 23 and again by Aug 1; both mature before Oct 14. | Aug 1 |
| Cilantro | — | Mar 5–Mar 26 | 244 | two-plantings: Plant Mar 5 and again by Sep 1; both mature before Nov 4. | Sep 1 |
| Parsley | Jan 22 | Apr 9–Apr 16 | 209 | fits: 70 days to maturity, 209 available after Apr 9. | Aug 12 |
| Celery | Jan 22 | Apr 9–Apr 23 | 209 | fits: 120 days to maturity, 209 available after Apr 9. | Jun 23 |
| Scallions | Jan 22 | Mar 5–Mar 19 | 258 | two-plantings: Plant Mar 5 and again by Sep 5; both mature before Nov 18. | Sep 5 |
| Turnip | — | Mar 5–Mar 19 | 258 | two-plantings: Plant Mar 5 and again by Sep 15; both mature before Nov 18. | Sep 15 |
| Kohlrabi | — | Feb 19–Mar 5 | 272 | two-plantings: Plant Feb 19 and again by Sep 10; both mature before Nov 18. | Sep 10 |
| Bok Choy | Mar 5 | Mar 26–Apr 2 | 223 | two-plantings: Plant Mar 26 and again by Sep 6; both mature before Nov 4. | Sep 6 |
| Collards | Jan 22 | Mar 5–Mar 19 | 258 | two-plantings: Plant Mar 5 and again by Sep 5; both mature before Nov 18. | Sep 5 |
| Cantaloupe | Mar 19 | Apr 16–Apr 23 | 167 | fits: 85 days to maturity, 167 available after Apr 16. | Jun 23 |
| Chives | Jan 8 | Apr 9–Apr 16 | 223 | fits: 90 days to maturity, 223 available after Apr 9. | — |
| Dill | — | Feb 5–Apr 30 | 272 | two-plantings: Plant Feb 5 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Oregano | Jan 22 | Apr 9–Apr 16 | 223 | fits: 80 days to maturity, 223 available after Apr 9. | — |
| Rosemary | Jan 8 | Apr 9–Apr 16 | 209 | fits: 80 days to maturity, 209 available after Apr 9. | — |
| Sage | Feb 5 | Apr 9–Apr 16 | 223 | fits: 75 days to maturity, 223 available after Apr 9. | — |
| Thyme | Jan 22 | Apr 9–Apr 16 | 223 | fits: 90 days to maturity, 223 available after Apr 9. | — |
| Calendula | Feb 19 | Mar 19–Apr 2 | 230 | two-plantings: Plant Mar 19 and again by Sep 1; both mature before Nov 4. | Sep 1 |
| Cosmos | Mar 5 | Apr 2–Apr 16 | 195 | two-plantings: Plant Apr 2 and again by Aug 1; both mature before Oct 14. | Aug 1 |
| Lavender | Jan 8 | Apr 2–Apr 16 | 230 | fits: 90 days to maturity, 230 available after Apr 2. | — |
| Marigolds | Feb 19 | Apr 2–Apr 9 | 195 | two-plantings: Plant Apr 2 and again by Aug 11; both mature before Oct 14. | Aug 11 |
| Melons | Mar 19 | Apr 16–Apr 23 | 167 | fits: 85 days to maturity, 167 available after Apr 16. | Jun 23 |
| Mint | — | Apr 2–Apr 16 | 230 | fits: 90 days to maturity, 230 available after Apr 2. | — |
| Nasturtiums | Mar 5 | Apr 2–Apr 9 | 195 | two-plantings: Plant Apr 2 and again by Aug 6; both mature before Oct 14. | Aug 6 |
| Pole Beans | — | Apr 9–Apr 23 | 188 | fits: 65 days to maturity, 188 available after Apr 9. | Jul 27 |
| Spaghetti Squash | Mar 19 | Apr 16–Apr 23 | 174 | fits: 90 days to maturity, 174 available after Apr 16. | Jun 25 |
| Sunflowers | — | Apr 2–Apr 16 | 195 | fits: 70 days to maturity, 195 available after Apr 2. | Jul 22 |
| Tomatillos | Feb 5 | Apr 9–Apr 16 | 174 | fits: 75 days to maturity, 174 available after Apr 9. | Jul 3 |
| Watermelon | Mar 19 | Apr 9–Apr 16 | 174 | fits: 80 days to maturity, 174 available after Apr 9. | Jun 28 |
| Yellow Squash | Mar 19 | Apr 16–Apr 23 | 181 | two-plantings: Plant Apr 16 and again by Aug 6; both mature before Oct 14. | Aug 6 |
| Zinnias | Mar 5 | Apr 2–Apr 16 | 195 | two-plantings: Plant Apr 2 and again by Aug 1; both mature before Oct 14. | Aug 1 |
Month by month in Tulsa
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 8), Lavender (Jan 8), Onion (Jan 8), Rosemary (Jan 8), Celery (Jan 22), Collards (Jan 22), +5 more. |
| February | Start indoors: Broccoli (Feb 5), Brussel Sprouts (Feb 5), Cabbage (Feb 5), Lettuce (Feb 5), Sage (Feb 5), Swiss Chard (Feb 5), +8 more. Direct sow from: Arugula (Feb 5), Beets (Feb 5), Dill (Feb 5), Peas (Feb 5), Radish (Feb 5), Spinach (Feb 5), +1 more. Plant: Strawberry (Feb 26). |
| March | Start indoors: Bok Choy (Mar 5), Corn (Mar 5), Cosmos (Mar 5), Nasturtiums (Mar 5), Okra (Mar 5), Zinnias (Mar 5), +9 more. Direct sow from: Cilantro (Mar 5), Turnip (Mar 5), Carrots (Mar 12), Potatoes (Mar 19). Transplant from: Broccoli (Mar 5), Brussel Sprouts (Mar 5), Cabbage (Mar 5), Collards (Mar 5), Kale (Mar 5), Lettuce (Mar 5), +6 more. |
| April | Direct sow from: Sunflowers (Apr 2), Beans (Apr 9), Pole Beans (Apr 9). Transplant from: Cosmos (Apr 2), Lavender (Apr 2), Marigolds (Apr 2), Mint (Apr 2), Nasturtiums (Apr 2), Zinnias (Apr 2), +23 more. Last frost around April 2. |
| May | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| June | Last sowing dates: Butternut Squash (Jun 15), Pumpkin (Jun 15), Cantaloupe (Jun 23), Celery (Jun 23), Melons (Jun 23), Spaghetti Squash (Jun 25), +2 more. |
| July | Last sowing dates: Pepper (Jul 3), Tomatillos (Jul 3), Eggplant (Jul 8), Corn (Jul 10), Sunflowers (Jul 22), Brussel Sprouts (Jul 27), +1 more. |
| August | Last sowing dates: Basil (Aug 1), Cosmos (Aug 1), Cucumber (Aug 1), Zinnias (Aug 1), Broccoli (Aug 2), Nasturtiums (Aug 6), +13 more. |
| September | Last sowing dates: Calendula (Sep 1), Cilantro (Sep 1), Collards (Sep 5), Scallions (Sep 5), Bok Choy (Sep 6), Lettuce (Sep 6), +6 more. |
| October | Direct sow from: Garlic (Oct 28). First frost around October 28. |
| November | Last sowing dates: Garlic (Nov 18). |
| 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 Tulsa, OK (ZIP 74108)?
The median last spring frost date for Tulsa, OK (ZIP code 74108) is around April 2. 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 19; one in ten it runs past April 16.
What is the first fall frost date in Tulsa, OK?
The median first fall frost date for Tulsa, OK is around October 28. 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 13 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Tulsa, OK?
The frost-free growing season in Tulsa is about 209 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 Tulsa (209 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 Tulsa, OK?
Tulsa, OK is in USDA hardiness zone 7b (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 Tulsa, OK?
Start tomatoes indoors Feb 26 and plant out Apr 16 in Tulsa. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Tulsa?
Two: plant Mar 5 and again by Sep 6; both mature before Nov 4.
When do I plant garlic in Tulsa?
Oct 28 to Nov 18; it overwinters and is ready the following summer.
Can I get two tomato crops in Tulsa?
Yes: plant out Apr 16 for a summer crop, and set out a second round of transplants by Jun 28 for a fall crop.
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