Frost Dates for Roma, TX 78584
Last spring frost January 24 · First fall frost December 14 · 324 frost-free days · USDA Zone 9b
ZIP 78584 has about 18,500 people.
Very long season: 324 frost-free days.
Frost probability for 78584
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | March 5 | January 24 | — |
| Fall (first frost) | November 25 | December 14 | — |
Dates come from NOAA 1971–2000 freeze probabilities at ZAPATA 1 S (43.5 km away); the 50% date is the median year.
Which crops fit a 324-day season in Roma
In Roma (324 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 | Dec 20 | Feb 7–Feb 14 | 282 | fits: 80 days to maturity, 282 available after Feb 7. | Aug 14 |
| Pepper | Dec 13 | Feb 7–Feb 14 | 282 | fits: 75 days to maturity, 282 available after Feb 7. | Aug 19 |
| Lettuce | Nov 29 | Dec 27–Jan 3 | 359 | two-plantings: Plant Dec 27 and again by Oct 23; both mature before Dec 21. | Oct 23 |
| Carrots | — | Jan 3–Jan 10 | 366 | fits: 70 days to maturity, 366 available after Jan 3. | Oct 12 |
| Cucumber | Jan 3 | Feb 7–Feb 14 | 296 | two-plantings: Plant Feb 7 and again by Sep 17; both mature before Nov 30. | Sep 17 |
| Beans | — | Jan 31–Feb 14 | 310 | two-plantings: Plant Jan 31 and again by Sep 24; both mature before Dec 7. | Sep 24 |
| Peas | — | Nov 29–Feb 7 | 387 | fits: 65 days to maturity, 387 available after Nov 29. | Oct 3 |
| Zucchini | Jan 10 | Feb 7–Feb 14 | 296 | two-plantings: Plant Feb 7 and again by Sep 22; both mature before Nov 30. | Sep 22 |
| Onion | Nov 1 | Dec 27–Jan 10 | 359 | fits: 100 days to maturity, 359 available after Dec 27. | — |
| Spinach | — | Nov 29–Jan 17 | 401 | two-plantings: Plant Nov 29 and again by Nov 11; both mature before Jan 4. | Nov 11 |
| Kale | Nov 15 | Dec 27–Jan 10 | 373 | two-plantings: Plant Dec 27 and again by Oct 27; both mature before Jan 4. | Oct 27 |
| Broccoli | Nov 29 | Dec 27–Jan 10 | 359 | fits: 80 days to maturity, 359 available after Dec 27. | Sep 18 |
| Cabbage | Nov 29 | Dec 27–Jan 10 | 373 | fits: 70 days to maturity, 373 available after Dec 27. | Oct 12 |
| Radish | — | Nov 29–Feb 21 | 387 | two-plantings: Plant Nov 29 and again by Nov 12; both mature before Dec 21. | Nov 12 |
| Beets | — | Nov 29–Feb 21 | 387 | two-plantings: Plant Nov 29 and again by Oct 13; both mature before Dec 21. | Oct 13 |
| Potatoes | — | Jan 10–Jan 17 | 345 | fits: 90 days to maturity, 345 available after Jan 10. | — |
| Garlic | — | Dec 14 | 429 | overwinter: Plant Dec 14 to Jan 4; harvest the following summer. | Jan 4 |
| Strawberry | — | Dec 20–Feb 14 | 380 | perennial: A perennial: plant Dec 20; it fruits from the following year and keeps producing for several years. | — |
| Corn | Dec 27 | Jan 31–Feb 7 | 296 | fits: 75 days to maturity, 296 available after Jan 31. | Aug 26 |
| Pumpkin | Jan 10 | Feb 7–Feb 7 | 289 | fits: 100 days to maturity, 289 available after Feb 7. | Aug 1 |
| Cauliflower | Dec 13 | Jan 17–Jan 31 | 338 | fits: 75 days to maturity, 338 available after Jan 17. | Sep 23 |
| Swiss Chard | Nov 29 | Jan 10–Jan 10 | 345 | two-plantings: Plant Jan 10 and again by Oct 13; both mature before Dec 21. | Oct 13 |
| Arugula | — | Nov 29–Feb 21 | 401 | two-plantings: Plant Nov 29 and again by Nov 11; both mature before Jan 4. | Nov 11 |
| Brussel Sprouts | Nov 29 | Dec 27–Jan 10 | 373 | fits: 100 days to maturity, 373 available after Dec 27. | Sep 12 |
| Butternut Squash | Jan 10 | Feb 7–Feb 14 | 289 | fits: 100 days to maturity, 289 available after Feb 7. | Aug 1 |
| Eggplant | Dec 6 | Feb 7–Feb 14 | 282 | fits: 70 days to maturity, 282 available after Feb 7. | Aug 24 |
| Okra | Dec 27 | Jan 31–Feb 7 | 303 | two-plantings: Plant Jan 31 and again by Sep 22; both mature before Nov 30. | Sep 22 |
| Basil | Dec 20 | Feb 14–Feb 14 | 289 | two-plantings: Plant Feb 14 and again by Sep 17; both mature before Nov 30. | Sep 17 |
| Cilantro | — | Dec 27–Jan 17 | 359 | two-plantings: Plant Dec 27 and again by Oct 18; both mature before Dec 21. | Oct 18 |
| Parsley | Nov 15 | Jan 31–Feb 7 | 324 | fits: 70 days to maturity, 324 available after Jan 31. | Sep 28 |
| Celery | Nov 15 | Jan 31–Feb 14 | 324 | fits: 120 days to maturity, 324 available after Jan 31. | Aug 9 |
| Scallions | Nov 15 | Dec 27–Jan 10 | 373 | two-plantings: Plant Dec 27 and again by Oct 22; both mature before Jan 4. | Oct 22 |
| Turnip | — | Dec 27–Jan 10 | 373 | two-plantings: Plant Dec 27 and again by Nov 1; both mature before Jan 4. | Nov 1 |
| Kohlrabi | — | Dec 13–Dec 27 | 387 | two-plantings: Plant Dec 13 and again by Oct 27; both mature before Jan 4. | Oct 27 |
| Bok Choy | Dec 27 | Jan 17–Jan 24 | 338 | two-plantings: Plant Jan 17 and again by Oct 23; both mature before Dec 21. | Oct 23 |
| Collards | Nov 15 | Dec 27–Jan 10 | 373 | two-plantings: Plant Dec 27 and again by Oct 22; both mature before Jan 4. | Oct 22 |
| Cantaloupe | Jan 10 | Feb 7–Feb 14 | 282 | fits: 85 days to maturity, 282 available after Feb 7. | Aug 9 |
| Chives | Nov 1 | Jan 31–Feb 7 | 338 | fits: 90 days to maturity, 338 available after Jan 31. | — |
| Dill | — | Nov 29–Feb 21 | 387 | two-plantings: Plant Nov 29 and again by Oct 13; both mature before Dec 21. | Oct 13 |
| Oregano | Nov 15 | Jan 31–Feb 7 | 338 | fits: 80 days to maturity, 338 available after Jan 31. | — |
| Rosemary | Nov 1 | Jan 31–Feb 7 | 324 | fits: 80 days to maturity, 324 available after Jan 31. | — |
| Sage | Nov 29 | Jan 31–Feb 7 | 338 | fits: 75 days to maturity, 338 available after Jan 31. | — |
| Thyme | Nov 15 | Jan 31–Feb 7 | 338 | fits: 90 days to maturity, 338 available after Jan 31. | — |
| Calendula | Dec 13 | Jan 10–Jan 24 | 345 | two-plantings: Plant Jan 10 and again by Oct 18; both mature before Dec 21. | Oct 18 |
| Cosmos | Dec 27 | Jan 24–Feb 7 | 310 | two-plantings: Plant Jan 24 and again by Sep 17; both mature before Nov 30. | Sep 17 |
| Lavender | Nov 1 | Jan 24–Feb 7 | 345 | fits: 90 days to maturity, 345 available after Jan 24. | — |
| Marigolds | Dec 13 | Jan 24–Jan 31 | 310 | two-plantings: Plant Jan 24 and again by Sep 27; both mature before Nov 30. | Sep 27 |
| Melons | Jan 10 | Feb 7–Feb 14 | 282 | fits: 85 days to maturity, 282 available after Feb 7. | Aug 9 |
| Mint | — | Jan 24–Feb 7 | 345 | fits: 90 days to maturity, 345 available after Jan 24. | — |
| Nasturtiums | Dec 27 | Jan 24–Jan 31 | 310 | two-plantings: Plant Jan 24 and again by Sep 22; both mature before Nov 30. | Sep 22 |
| Pole Beans | — | Jan 31–Feb 14 | 303 | fits: 65 days to maturity, 303 available after Jan 31. | Sep 12 |
| Spaghetti Squash | Jan 10 | Feb 7–Feb 14 | 289 | fits: 90 days to maturity, 289 available after Feb 7. | Aug 11 |
| Sunflowers | — | Jan 24–Feb 7 | 310 | fits: 70 days to maturity, 310 available after Jan 24. | Sep 7 |
| Tomatillos | Nov 29 | Jan 31–Feb 7 | 289 | fits: 75 days to maturity, 289 available after Jan 31. | Aug 19 |
| Watermelon | Jan 10 | Jan 31–Feb 7 | 289 | fits: 80 days to maturity, 289 available after Jan 31. | Aug 14 |
| Yellow Squash | Jan 10 | Feb 7–Feb 14 | 296 | two-plantings: Plant Feb 7 and again by Sep 22; both mature before Nov 30. | Sep 22 |
| Zinnias | Dec 27 | Jan 24–Feb 7 | 310 | two-plantings: Plant Jan 24 and again by Sep 17; both mature before Nov 30. | Sep 17 |
Month by month in Roma
| Month | What to do |
|---|---|
| January | Start indoors: Cucumber (Jan 3), Butternut Squash (Jan 10), Cantaloupe (Jan 10), Melons (Jan 10), Pumpkin (Jan 10), Spaghetti Squash (Jan 10), +3 more. Direct sow from: Carrots (Jan 3), Potatoes (Jan 10), Sunflowers (Jan 24), Beans (Jan 31), Pole Beans (Jan 31). Transplant from: Calendula (Jan 10), Swiss Chard (Jan 10), Bok Choy (Jan 17), Cauliflower (Jan 17), Cosmos (Jan 24), Lavender (Jan 24), +15 more. Last frost around January 24. Last sowing dates: Garlic (Jan 4). |
| February | Transplant from: Butternut Squash (Feb 7), Cantaloupe (Feb 7), Cucumber (Feb 7), Eggplant (Feb 7), Melons (Feb 7), Pepper (Feb 7), +6 more. |
| March | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| April | Harvest regularly to encourage production. Monitor for pests and disease. |
| May | Midsummer: harvest beans, zucchini, cucumbers. Start brassica seeds indoors for fall. |
| June | Direct sow carrots and beets for fall harvest. Start fall broccoli and kale indoors. |
| July | Direct sow carrots and beets for fall harvest. Start fall broccoli and kale indoors. |
| August | Last sowing dates: Butternut Squash (Aug 1), Pumpkin (Aug 1), Cantaloupe (Aug 9), Celery (Aug 9), Melons (Aug 9), Spaghetti Squash (Aug 11), +6 more. |
| September | Last sowing dates: Sunflowers (Sep 7), Brussel Sprouts (Sep 12), Pole Beans (Sep 12), Basil (Sep 17), Cosmos (Sep 17), Cucumber (Sep 17), +10 more. |
| October | Last sowing dates: Peas (Oct 3), Cabbage (Oct 12), Carrots (Oct 12), Beets (Oct 13), Dill (Oct 13), Swiss Chard (Oct 13), +8 more. |
| November | Start indoors: Chives (Nov 1), Lavender (Nov 1), Onion (Nov 1), Rosemary (Nov 1), Celery (Nov 15), Collards (Nov 15), +12 more. Direct sow from: Arugula (Nov 29), Beets (Nov 29), Dill (Nov 29), Peas (Nov 29), Radish (Nov 29), Spinach (Nov 29). Last sowing dates: Turnip (Nov 1), Arugula (Nov 11), Spinach (Nov 11), Radish (Nov 12). |
| December | Start indoors: Eggplant (Dec 6), Calendula (Dec 13), Cauliflower (Dec 13), Marigolds (Dec 13), Pepper (Dec 13), Basil (Dec 20), +7 more. Direct sow from: Kohlrabi (Dec 13), Garlic (Dec 14), Cilantro (Dec 27), Turnip (Dec 27). Transplant from: Broccoli (Dec 27), Brussel Sprouts (Dec 27), Cabbage (Dec 27), Collards (Dec 27), Kale (Dec 27), Lettuce (Dec 27), +2 more. Plant: Strawberry (Dec 20). First frost around December 14. |
Frequently Asked Questions
What is the last frost date for Roma, TX (ZIP 78584)?
The median last spring frost date for Roma, TX (ZIP code 78584) is around January 24. 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.
What is the first fall frost date in Roma, TX?
The median first fall frost date for Roma, TX is around December 14. 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 25 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Roma, TX?
The frost-free growing season in Roma is about 324 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 Roma (324 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 Roma, TX?
Roma, TX is in USDA hardiness zone 9b (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 Roma, TX?
Start tomatoes indoors Dec 20 and plant out Feb 7 in Roma. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Roma?
Two: plant Dec 27 and again by Oct 23; both mature before Dec 21.
When do I plant garlic in Roma?
Dec 14 to Jan 4; it overwinters and is ready the following summer.
Can I get two tomato crops in Roma?
Yes: plant out Feb 7 for a summer crop, and set out a second round of transplants by Aug 14 for a fall crop.
Which nearby ZIP has a longer season?
Penitas (ZIP 78576) has 355 frost-free days, 31 more than Roma (ZIP 78584). See Penitas ZIP 78576 frost dates
Nearby and related
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