Frost Dates for Jacksonville, TX 75766
Last spring frost March 13 · First fall frost November 18 · 250 frost-free days · USDA Zone 8b
ZIP 75766 has about 25,900 people.
Very long season: 250 frost-free days. Spring frost risk spans February 18–April 4 (45 days). Fall frost risk spans October 28–December 8 (41 days).
Frost probability for 75766
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 4 | March 13 | February 18 |
| Fall (first frost) | October 28 | November 18 | December 8 |
Dates come from NOAA 1971–2000 freeze probabilities at JACKSONVILLE (2.7 km away); the 50% date is the median year.
Which crops fit a 250-day season in Jacksonville
In Jacksonville (250 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 6 | Mar 27–Apr 3 | 208 | fits: 80 days to maturity, 208 available after Mar 27. | Jul 19 |
| Pepper | Jan 30 | Mar 27–Apr 3 | 208 | fits: 75 days to maturity, 208 available after Mar 27. | Jul 24 |
| Lettuce | Jan 16 | Feb 13–Feb 20 | 285 | two-plantings: Plant Feb 13 and again by Sep 27; both mature before Nov 25. | Sep 27 |
| Carrots | — | Feb 20–Feb 27 | 292 | fits: 70 days to maturity, 292 available after Feb 20. | Sep 16 |
| Cucumber | Feb 20 | Mar 27–Apr 3 | 222 | two-plantings: Plant Mar 27 and again by Aug 22; both mature before Nov 4. | Aug 22 |
| Beans | — | Mar 20–Apr 3 | 236 | two-plantings: Plant Mar 20 and again by Aug 29; both mature before Nov 11. | Aug 29 |
| Peas | — | Jan 16–Mar 27 | 313 | fits: 65 days to maturity, 313 available after Jan 16. | Sep 7 |
| Zucchini | Feb 27 | Mar 27–Apr 3 | 222 | two-plantings: Plant Mar 27 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Onion | Dec 19 | Feb 13–Feb 27 | 285 | fits: 100 days to maturity, 285 available after Feb 13. | — |
| Spinach | — | Jan 16–Mar 6 | 327 | two-plantings: Plant Jan 16 and again by Oct 16; both mature before Dec 9. | Oct 16 |
| Kale | Jan 2 | Feb 13–Feb 27 | 299 | two-plantings: Plant Feb 13 and again by Oct 1; both mature before Dec 9. | Oct 1 |
| Broccoli | Jan 16 | Feb 13–Feb 27 | 285 | fits: 80 days to maturity, 285 available after Feb 13. | Aug 23 |
| Cabbage | Jan 16 | Feb 13–Feb 27 | 299 | fits: 70 days to maturity, 299 available after Feb 13. | Sep 16 |
| Radish | — | Jan 16–Apr 10 | 313 | two-plantings: Plant Jan 16 and again by Oct 17; both mature before Nov 25. | Oct 17 |
| Beets | — | Jan 16–Apr 10 | 313 | two-plantings: Plant Jan 16 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Potatoes | — | Feb 27–Mar 6 | 271 | fits: 90 days to maturity, 271 available after Feb 27. | — |
| Garlic | — | Nov 18 | 355 | overwinter: Plant Nov 18 to Dec 9; harvest the following summer. | Dec 9 |
| Strawberry | — | Feb 6–Apr 3 | 306 | perennial: A perennial: plant Feb 6; it fruits from the following year and keeps producing for several years. | — |
| Corn | Feb 13 | Mar 20–Mar 27 | 222 | fits: 75 days to maturity, 222 available after Mar 20. | Jul 31 |
| Pumpkin | Feb 27 | Mar 27–Mar 27 | 215 | fits: 100 days to maturity, 215 available after Mar 27. | Jul 6 |
| Cauliflower | Jan 30 | Mar 6–Mar 20 | 264 | fits: 75 days to maturity, 264 available after Mar 6. | Aug 28 |
| Swiss Chard | Jan 16 | Feb 27–Feb 27 | 271 | two-plantings: Plant Feb 27 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Arugula | — | Jan 16–Apr 10 | 327 | two-plantings: Plant Jan 16 and again by Oct 16; both mature before Dec 9. | Oct 16 |
| Brussel Sprouts | Jan 16 | Feb 13–Feb 27 | 299 | fits: 100 days to maturity, 299 available after Feb 13. | Aug 17 |
| Butternut Squash | Feb 27 | Mar 27–Apr 3 | 215 | fits: 100 days to maturity, 215 available after Mar 27. | Jul 6 |
| Eggplant | Jan 23 | Mar 27–Apr 3 | 208 | fits: 70 days to maturity, 208 available after Mar 27. | Jul 29 |
| Okra | Feb 13 | Mar 20–Mar 27 | 229 | two-plantings: Plant Mar 20 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Basil | Feb 6 | Apr 3–Apr 3 | 215 | two-plantings: Plant Apr 3 and again by Aug 22; both mature before Nov 4. | Aug 22 |
| Cilantro | — | Feb 13–Mar 6 | 285 | two-plantings: Plant Feb 13 and again by Sep 22; both mature before Nov 25. | Sep 22 |
| Parsley | Jan 2 | Mar 20–Mar 27 | 250 | fits: 70 days to maturity, 250 available after Mar 20. | Sep 2 |
| Celery | Jan 2 | Mar 20–Apr 3 | 250 | fits: 120 days to maturity, 250 available after Mar 20. | Jul 14 |
| Scallions | Jan 2 | Feb 13–Feb 27 | 299 | two-plantings: Plant Feb 13 and again by Sep 26; both mature before Dec 9. | Sep 26 |
| Turnip | — | Feb 13–Feb 27 | 299 | two-plantings: Plant Feb 13 and again by Oct 6; both mature before Dec 9. | Oct 6 |
| Kohlrabi | — | Jan 30–Feb 13 | 313 | two-plantings: Plant Jan 30 and again by Oct 1; both mature before Dec 9. | Oct 1 |
| Bok Choy | Feb 13 | Mar 6–Mar 13 | 264 | two-plantings: Plant Mar 6 and again by Sep 27; both mature before Nov 25. | Sep 27 |
| Collards | Jan 2 | Feb 13–Feb 27 | 299 | two-plantings: Plant Feb 13 and again by Sep 26; both mature before Dec 9. | Sep 26 |
| Cantaloupe | Feb 27 | Mar 27–Apr 3 | 208 | fits: 85 days to maturity, 208 available after Mar 27. | Jul 14 |
| Chives | Dec 19 | Mar 20–Mar 27 | 264 | fits: 90 days to maturity, 264 available after Mar 20. | — |
| Dill | — | Jan 16–Apr 10 | 313 | two-plantings: Plant Jan 16 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Oregano | Jan 2 | Mar 20–Mar 27 | 264 | fits: 80 days to maturity, 264 available after Mar 20. | — |
| Rosemary | Dec 19 | Mar 20–Mar 27 | 250 | fits: 80 days to maturity, 250 available after Mar 20. | — |
| Sage | Jan 16 | Mar 20–Mar 27 | 264 | fits: 75 days to maturity, 264 available after Mar 20. | — |
| Thyme | Jan 2 | Mar 20–Mar 27 | 264 | fits: 90 days to maturity, 264 available after Mar 20. | — |
| Calendula | Jan 30 | Feb 27–Mar 13 | 271 | two-plantings: Plant Feb 27 and again by Sep 22; both mature before Nov 25. | Sep 22 |
| Cosmos | Feb 13 | Mar 13–Mar 27 | 236 | two-plantings: Plant Mar 13 and again by Aug 22; both mature before Nov 4. | Aug 22 |
| Lavender | Dec 19 | Mar 13–Mar 27 | 271 | fits: 90 days to maturity, 271 available after Mar 13. | — |
| Marigolds | Jan 30 | Mar 13–Mar 20 | 236 | two-plantings: Plant Mar 13 and again by Sep 1; both mature before Nov 4. | Sep 1 |
| Melons | Feb 27 | Mar 27–Apr 3 | 208 | fits: 85 days to maturity, 208 available after Mar 27. | Jul 14 |
| Mint | — | Mar 13–Mar 27 | 271 | fits: 90 days to maturity, 271 available after Mar 13. | — |
| Nasturtiums | Feb 13 | Mar 13–Mar 20 | 236 | two-plantings: Plant Mar 13 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Pole Beans | — | Mar 20–Apr 3 | 229 | fits: 65 days to maturity, 229 available after Mar 20. | Aug 17 |
| Spaghetti Squash | Feb 27 | Mar 27–Apr 3 | 215 | fits: 90 days to maturity, 215 available after Mar 27. | Jul 16 |
| Sunflowers | — | Mar 13–Mar 27 | 236 | fits: 70 days to maturity, 236 available after Mar 13. | Aug 12 |
| Tomatillos | Jan 16 | Mar 20–Mar 27 | 215 | fits: 75 days to maturity, 215 available after Mar 20. | Jul 24 |
| Watermelon | Feb 27 | Mar 20–Mar 27 | 215 | fits: 80 days to maturity, 215 available after Mar 20. | Jul 19 |
| Yellow Squash | Feb 27 | Mar 27–Apr 3 | 222 | two-plantings: Plant Mar 27 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Zinnias | Feb 13 | Mar 13–Mar 27 | 236 | two-plantings: Plant Mar 13 and again by Aug 22; both mature before Nov 4. | Aug 22 |
Month by month in Jacksonville
| Month | What to do |
|---|---|
| January | Start indoors: Celery (Jan 2), Collards (Jan 2), Kale (Jan 2), Oregano (Jan 2), Parsley (Jan 2), Scallions (Jan 2), +13 more. Direct sow from: Arugula (Jan 16), Beets (Jan 16), Dill (Jan 16), Peas (Jan 16), Radish (Jan 16), Spinach (Jan 16), +1 more. |
| February | Start indoors: Basil (Feb 6), Tomato (Feb 6), Bok Choy (Feb 13), Corn (Feb 13), Cosmos (Feb 13), Nasturtiums (Feb 13), +11 more. Direct sow from: Cilantro (Feb 13), Turnip (Feb 13), Carrots (Feb 20), Potatoes (Feb 27). Transplant from: Broccoli (Feb 13), Brussel Sprouts (Feb 13), Cabbage (Feb 13), Collards (Feb 13), Kale (Feb 13), Lettuce (Feb 13), +4 more. Plant: Strawberry (Feb 6). |
| March | Direct sow from: Sunflowers (Mar 13), Beans (Mar 20), Pole Beans (Mar 20). Transplant from: Bok Choy (Mar 6), Cauliflower (Mar 6), Cosmos (Mar 13), Lavender (Mar 13), Marigolds (Mar 13), Mint (Mar 13), +24 more. Last frost around March 13. |
| April | Transplant from: Basil (Apr 3). |
| 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 19), Lavender (Dec 19), Onion (Dec 19), Rosemary (Dec 19). Last sowing dates: Garlic (Dec 9). |
Frequently Asked Questions
What is the last frost date for Jacksonville, TX (ZIP 75766)?
The median last spring frost date for Jacksonville, TX (ZIP code 75766) is around March 13. 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 18; one in ten it runs past April 4.
What is the first fall frost date in Jacksonville, TX?
The median first fall frost date for Jacksonville, 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 October 28 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Jacksonville, TX?
The frost-free growing season in Jacksonville is about 250 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 Jacksonville (250 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 Jacksonville, TX?
Jacksonville, 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 Jacksonville, TX?
Start tomatoes indoors Feb 6 and plant out Mar 27 in Jacksonville. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Jacksonville?
Two: plant Feb 13 and again by Sep 27; both mature before Nov 25.
When do I plant garlic in Jacksonville?
Nov 18 to Dec 9; it overwinters and is ready the following summer.
Can I get two tomato crops in Jacksonville?
Yes: plant out Mar 27 for a summer crop, and set out a second round of transplants by Jul 19 for a fall crop.
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