Frost Dates for Duncanville, TX 75116
Last spring frost March 12 · First fall frost November 18 · 251 frost-free days · USDA Zone 8b
ZIP 75116 has about 20,000 people, the largest of 2 ZIP codes in Duncanville.
Very long season: 251 frost-free days. Spring frost risk spans February 20–April 2 (41 days). Fall frost risk spans November 1–December 5 (34 days).
Frost probability for 75116
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 2 | March 12 | February 20 |
| Fall (first frost) | November 1 | November 18 | December 5 |
Dates come from NOAA 1971–2000 freeze probabilities at FERRIS (27.6 km away); the 50% date is the median year.
Frost dates by ZIP code in Duncanville, TX
| ZIP | Last spring frost (50%) | First fall frost (50%) | Zone |
|---|---|---|---|
| 75116 | March 12 | November 18 | 8b |
| 75137 | March 12 | November 18 | 8b |
Which crops fit a 251-day season in Duncanville
In Duncanville (251 frost-free days, a very 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 5 | Mar 26–Apr 2 | 209 | fits: 80 days to maturity, 209 available after Mar 26. | Jul 19 |
| Pepper | Jan 29 | Mar 26–Apr 2 | 209 | fits: 75 days to maturity, 209 available after Mar 26. | Jul 24 |
| Lettuce | Jan 15 | Feb 12–Feb 19 | 286 | two-plantings: Plant Feb 12 and again by Sep 27; both mature before Nov 25. | Sep 27 |
| Carrots | — | Feb 19–Feb 26 | 293 | fits: 70 days to maturity, 293 available after Feb 19. | Sep 16 |
| Cucumber | Feb 19 | Mar 26–Apr 2 | 223 | two-plantings: Plant Mar 26 and again by Aug 22; both mature before Nov 4. | Aug 22 |
| Beans | — | Mar 19–Apr 2 | 237 | two-plantings: Plant Mar 19 and again by Aug 29; both mature before Nov 11. | Aug 29 |
| Peas | — | Jan 15–Mar 26 | 314 | fits: 65 days to maturity, 314 available after Jan 15. | Sep 7 |
| Zucchini | Feb 26 | Mar 26–Apr 2 | 223 | two-plantings: Plant Mar 26 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Onion | Dec 18 | Feb 12–Feb 26 | 286 | fits: 100 days to maturity, 286 available after Feb 12. | — |
| Spinach | — | Jan 15–Mar 5 | 328 | two-plantings: Plant Jan 15 and again by Oct 16; both mature before Dec 9. | Oct 16 |
| Kale | Jan 1 | Feb 12–Feb 26 | 300 | two-plantings: Plant Feb 12 and again by Oct 1; both mature before Dec 9. | Oct 1 |
| Broccoli | Jan 15 | Feb 12–Feb 26 | 286 | fits: 80 days to maturity, 286 available after Feb 12. | Aug 23 |
| Cabbage | Jan 15 | Feb 12–Feb 26 | 300 | fits: 70 days to maturity, 300 available after Feb 12. | Sep 16 |
| Radish | — | Jan 15–Apr 9 | 314 | two-plantings: Plant Jan 15 and again by Oct 17; both mature before Nov 25. | Oct 17 |
| Beets | — | Jan 15–Apr 9 | 314 | two-plantings: Plant Jan 15 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Potatoes | — | Feb 26–Mar 5 | 272 | fits: 90 days to maturity, 272 available after Feb 26. | — |
| Garlic | — | Nov 18 | 356 | overwinter: Plant Nov 18 to Dec 9; harvest the following summer. | Dec 9 |
| Strawberry | — | Feb 5–Apr 2 | 307 | perennial: A perennial: plant Feb 5; it fruits from the following year and keeps producing for several years. | — |
| Corn | Feb 12 | Mar 19–Mar 26 | 223 | fits: 75 days to maturity, 223 available after Mar 19. | Jul 31 |
| Pumpkin | Feb 26 | Mar 26–Mar 26 | 216 | fits: 100 days to maturity, 216 available after Mar 26. | Jul 6 |
| Cauliflower | Jan 29 | Mar 5–Mar 19 | 265 | fits: 75 days to maturity, 265 available after Mar 5. | Aug 28 |
| Swiss Chard | Jan 15 | Feb 26–Feb 26 | 272 | two-plantings: Plant Feb 26 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Arugula | — | Jan 15–Apr 9 | 328 | two-plantings: Plant Jan 15 and again by Oct 16; both mature before Dec 9. | Oct 16 |
| Brussel Sprouts | Jan 15 | Feb 12–Feb 26 | 300 | fits: 100 days to maturity, 300 available after Feb 12. | Aug 17 |
| Butternut Squash | Feb 26 | Mar 26–Apr 2 | 216 | fits: 100 days to maturity, 216 available after Mar 26. | Jul 6 |
| Eggplant | Jan 22 | Mar 26–Apr 2 | 209 | fits: 70 days to maturity, 209 available after Mar 26. | Jul 29 |
| Okra | Feb 12 | Mar 19–Mar 26 | 230 | two-plantings: Plant Mar 19 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Basil | Feb 5 | Apr 2–Apr 2 | 216 | two-plantings: Plant Apr 2 and again by Aug 22; both mature before Nov 4. | Aug 22 |
| Cilantro | — | Feb 12–Mar 5 | 286 | two-plantings: Plant Feb 12 and again by Sep 22; both mature before Nov 25. | Sep 22 |
| Parsley | Jan 1 | Mar 19–Mar 26 | 251 | fits: 70 days to maturity, 251 available after Mar 19. | Sep 2 |
| Celery | Jan 1 | Mar 19–Apr 2 | 251 | fits: 120 days to maturity, 251 available after Mar 19. | Jul 14 |
| Scallions | Jan 1 | Feb 12–Feb 26 | 300 | two-plantings: Plant Feb 12 and again by Sep 26; both mature before Dec 9. | Sep 26 |
| Turnip | — | Feb 12–Feb 26 | 300 | two-plantings: Plant Feb 12 and again by Oct 6; both mature before Dec 9. | Oct 6 |
| Kohlrabi | — | Jan 29–Feb 12 | 314 | two-plantings: Plant Jan 29 and again by Oct 1; both mature before Dec 9. | Oct 1 |
| Bok Choy | Feb 12 | Mar 5–Mar 12 | 265 | two-plantings: Plant Mar 5 and again by Sep 27; both mature before Nov 25. | Sep 27 |
| Collards | Jan 1 | Feb 12–Feb 26 | 300 | two-plantings: Plant Feb 12 and again by Sep 26; both mature before Dec 9. | Sep 26 |
| Cantaloupe | Feb 26 | Mar 26–Apr 2 | 209 | fits: 85 days to maturity, 209 available after Mar 26. | Jul 14 |
| Chives | Dec 18 | Mar 19–Mar 26 | 265 | fits: 90 days to maturity, 265 available after Mar 19. | — |
| Dill | — | Jan 15–Apr 9 | 314 | two-plantings: Plant Jan 15 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Oregano | Jan 1 | Mar 19–Mar 26 | 265 | fits: 80 days to maturity, 265 available after Mar 19. | — |
| Rosemary | Dec 18 | Mar 19–Mar 26 | 251 | fits: 80 days to maturity, 251 available after Mar 19. | — |
| Sage | Jan 15 | Mar 19–Mar 26 | 265 | fits: 75 days to maturity, 265 available after Mar 19. | — |
| Thyme | Jan 1 | Mar 19–Mar 26 | 265 | fits: 90 days to maturity, 265 available after Mar 19. | — |
| Calendula | Jan 29 | Feb 26–Mar 12 | 272 | two-plantings: Plant Feb 26 and again by Sep 22; both mature before Nov 25. | Sep 22 |
| Cosmos | Feb 12 | Mar 12–Mar 26 | 237 | two-plantings: Plant Mar 12 and again by Aug 22; both mature before Nov 4. | Aug 22 |
| Lavender | Dec 18 | Mar 12–Mar 26 | 272 | fits: 90 days to maturity, 272 available after Mar 12. | — |
| Marigolds | Jan 29 | Mar 12–Mar 19 | 237 | two-plantings: Plant Mar 12 and again by Sep 1; both mature before Nov 4. | Sep 1 |
| Melons | Feb 26 | Mar 26–Apr 2 | 209 | fits: 85 days to maturity, 209 available after Mar 26. | Jul 14 |
| Mint | — | Mar 12–Mar 26 | 272 | fits: 90 days to maturity, 272 available after Mar 12. | — |
| Nasturtiums | Feb 12 | Mar 12–Mar 19 | 237 | two-plantings: Plant Mar 12 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Pole Beans | — | Mar 19–Apr 2 | 230 | fits: 65 days to maturity, 230 available after Mar 19. | Aug 17 |
| Spaghetti Squash | Feb 26 | Mar 26–Apr 2 | 216 | fits: 90 days to maturity, 216 available after Mar 26. | Jul 16 |
| Sunflowers | — | Mar 12–Mar 26 | 237 | fits: 70 days to maturity, 237 available after Mar 12. | Aug 12 |
| Tomatillos | Jan 15 | Mar 19–Mar 26 | 216 | fits: 75 days to maturity, 216 available after Mar 19. | Jul 24 |
| Watermelon | Feb 26 | Mar 19–Mar 26 | 216 | fits: 80 days to maturity, 216 available after Mar 19. | Jul 19 |
| Yellow Squash | Feb 26 | Mar 26–Apr 2 | 223 | two-plantings: Plant Mar 26 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Zinnias | Feb 12 | Mar 12–Mar 26 | 237 | two-plantings: Plant Mar 12 and again by Aug 22; both mature before Nov 4. | Aug 22 |
Month by month in Duncanville
| Month | What to do |
|---|---|
| January | Start indoors: Celery (Jan 1), Collards (Jan 1), Kale (Jan 1), Oregano (Jan 1), Parsley (Jan 1), Scallions (Jan 1), +13 more. Direct sow from: Arugula (Jan 15), Beets (Jan 15), Dill (Jan 15), Peas (Jan 15), Radish (Jan 15), Spinach (Jan 15), +1 more. |
| February | Start indoors: Basil (Feb 5), Tomato (Feb 5), Bok Choy (Feb 12), Corn (Feb 12), Cosmos (Feb 12), Nasturtiums (Feb 12), +11 more. Direct sow from: Cilantro (Feb 12), Turnip (Feb 12), Carrots (Feb 19), Potatoes (Feb 26). Transplant from: Broccoli (Feb 12), Brussel Sprouts (Feb 12), Cabbage (Feb 12), Collards (Feb 12), Kale (Feb 12), Lettuce (Feb 12), +4 more. Plant: Strawberry (Feb 5). |
| March | Direct sow from: Sunflowers (Mar 12), Beans (Mar 19), Pole Beans (Mar 19). Transplant from: Bok Choy (Mar 5), Cauliflower (Mar 5), Cosmos (Mar 12), Lavender (Mar 12), Marigolds (Mar 12), Mint (Mar 12), +24 more. Last frost around March 12. |
| April | Transplant from: Basil (Apr 2). |
| May | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| June | Harvest regularly to encourage production. Monitor for pests and disease. |
| July | Last sowing dates: Butternut Squash (Jul 6), Pumpkin (Jul 6), Cantaloupe (Jul 14), Celery (Jul 14), Melons (Jul 14), Spaghetti Squash (Jul 16), +6 more. |
| August | Last sowing dates: Sunflowers (Aug 12), Brussel Sprouts (Aug 17), Pole Beans (Aug 17), Basil (Aug 22), Cosmos (Aug 22), Cucumber (Aug 22), +8 more. |
| September | Last sowing dates: Marigolds (Sep 1), Parsley (Sep 2), Peas (Sep 7), Cabbage (Sep 16), Carrots (Sep 16), Beets (Sep 17), +8 more. |
| October | Last sowing dates: Kale (Oct 1), Kohlrabi (Oct 1), Turnip (Oct 6), Arugula (Oct 16), Spinach (Oct 16), Radish (Oct 17). |
| November | Direct sow from: Garlic (Nov 18). First frost around November 18. |
| December | Start indoors: Chives (Dec 18), Lavender (Dec 18), Onion (Dec 18), Rosemary (Dec 18). Last sowing dates: Garlic (Dec 9). |
Frequently Asked Questions
What is the last frost date for Duncanville, TX (ZIP 75116)?
The median last spring frost date for Duncanville, TX (ZIP code 75116) is around March 12. 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 February 20; one in ten it runs past April 2.
What is the first fall frost date in Duncanville, TX?
The median first fall frost date for Duncanville, TX is around November 18. 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 November 1 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Duncanville, TX?
The frost-free growing season in Duncanville is about 251 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 Duncanville (251 frost-free days, a very long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Duncanville, TX?
Duncanville, TX is in USDA hardiness zone 8b (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 Duncanville, TX?
Start tomatoes indoors Feb 5 and plant out Mar 26 in Duncanville. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Duncanville?
Two: plant Feb 12 and again by Sep 27; both mature before Nov 25.
When do I plant garlic in Duncanville?
Nov 18 to Dec 9; it overwinters and is ready the following summer.
Can I get two tomato crops in Duncanville?
Yes: plant out Mar 26 for a summer crop, and set out a second round of transplants by Jul 19 for a fall crop.
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