Frost Dates for Caldwell, TX 77836
Last spring frost March 2 · First fall frost November 23 · 266 frost-free days · USDA Zone 9a
ZIP 77836 has about 12,700 people.
Very long season: 266 frost-free days. Spring frost risk spans February 8–March 26 (46 days). Fall frost risk spans November 2–December 13 (41 days).
Frost probability for 77836
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | March 26 | March 2 | February 8 |
| Fall (first frost) | November 2 | November 23 | December 13 |
Dates come from NOAA 1971–2000 freeze probabilities at COLLEGE STN EASTERWOOD AP (30.7 km away); the 50% date is the median year.
Which crops fit a 266-day season in Caldwell
In Caldwell (266 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 | Jan 26 | Mar 16–Mar 23 | 224 | fits: 80 days to maturity, 224 available after Mar 16. | Jul 24 |
| Pepper | Jan 19 | Mar 16–Mar 23 | 224 | fits: 75 days to maturity, 224 available after Mar 16. | Jul 29 |
| Lettuce | Jan 5 | Feb 2–Feb 9 | 301 | two-plantings: Plant Feb 2 and again by Oct 2; both mature before Nov 30. | Oct 2 |
| Carrots | — | Feb 9–Feb 16 | 308 | fits: 70 days to maturity, 308 available after Feb 9. | Sep 21 |
| Cucumber | Feb 9 | Mar 16–Mar 23 | 238 | two-plantings: Plant Mar 16 and again by Aug 27; both mature before Nov 9. | Aug 27 |
| Beans | — | Mar 9–Mar 23 | 252 | two-plantings: Plant Mar 9 and again by Sep 3; both mature before Nov 16. | Sep 3 |
| Peas | — | Jan 5–Mar 16 | 329 | fits: 65 days to maturity, 329 available after Jan 5. | Sep 12 |
| Zucchini | Feb 16 | Mar 16–Mar 23 | 238 | two-plantings: Plant Mar 16 and again by Sep 1; both mature before Nov 9. | Sep 1 |
| Onion | Dec 8 | Feb 2–Feb 16 | 301 | fits: 100 days to maturity, 301 available after Feb 2. | — |
| Spinach | — | Jan 5–Feb 23 | 343 | two-plantings: Plant Jan 5 and again by Oct 21; both mature before Dec 14. | Oct 21 |
| Kale | Dec 22 | Feb 2–Feb 16 | 315 | two-plantings: Plant Feb 2 and again by Oct 6; both mature before Dec 14. | Oct 6 |
| Broccoli | Jan 5 | Feb 2–Feb 16 | 301 | fits: 80 days to maturity, 301 available after Feb 2. | Aug 28 |
| Cabbage | Jan 5 | Feb 2–Feb 16 | 315 | fits: 70 days to maturity, 315 available after Feb 2. | Sep 21 |
| Radish | — | Jan 5–Mar 30 | 329 | two-plantings: Plant Jan 5 and again by Oct 22; both mature before Nov 30. | Oct 22 |
| Beets | — | Jan 5–Mar 30 | 329 | two-plantings: Plant Jan 5 and again by Sep 22; both mature before Nov 30. | Sep 22 |
| Potatoes | — | Feb 16–Feb 23 | 287 | fits: 90 days to maturity, 287 available after Feb 16. | — |
| Garlic | — | Nov 23 | 371 | overwinter: Plant Nov 23 to Dec 14; harvest the following summer. | Dec 14 |
| Strawberry | — | Jan 26–Mar 23 | 322 | perennial: A perennial: plant Jan 26; it fruits from the following year and keeps producing for several years. | — |
| Corn | Feb 2 | Mar 9–Mar 16 | 238 | fits: 75 days to maturity, 238 available after Mar 9. | Aug 5 |
| Pumpkin | Feb 16 | Mar 16–Mar 16 | 231 | fits: 100 days to maturity, 231 available after Mar 16. | Jul 11 |
| Cauliflower | Jan 19 | Feb 23–Mar 9 | 280 | fits: 75 days to maturity, 280 available after Feb 23. | Sep 2 |
| Swiss Chard | Jan 5 | Feb 16–Feb 16 | 287 | two-plantings: Plant Feb 16 and again by Sep 22; both mature before Nov 30. | Sep 22 |
| Arugula | — | Jan 5–Mar 30 | 343 | two-plantings: Plant Jan 5 and again by Oct 21; both mature before Dec 14. | Oct 21 |
| Brussel Sprouts | Jan 5 | Feb 2–Feb 16 | 315 | fits: 100 days to maturity, 315 available after Feb 2. | Aug 22 |
| Butternut Squash | Feb 16 | Mar 16–Mar 23 | 231 | fits: 100 days to maturity, 231 available after Mar 16. | Jul 11 |
| Eggplant | Jan 12 | Mar 16–Mar 23 | 224 | fits: 70 days to maturity, 224 available after Mar 16. | Aug 3 |
| Okra | Feb 2 | Mar 9–Mar 16 | 245 | two-plantings: Plant Mar 9 and again by Sep 1; both mature before Nov 9. | Sep 1 |
| Basil | Jan 26 | Mar 23–Mar 23 | 231 | two-plantings: Plant Mar 23 and again by Aug 27; both mature before Nov 9. | Aug 27 |
| Cilantro | — | Feb 2–Feb 23 | 301 | two-plantings: Plant Feb 2 and again by Sep 27; both mature before Nov 30. | Sep 27 |
| Parsley | Dec 22 | Mar 9–Mar 16 | 266 | fits: 70 days to maturity, 266 available after Mar 9. | Sep 7 |
| Celery | Dec 22 | Mar 9–Mar 23 | 266 | fits: 120 days to maturity, 266 available after Mar 9. | Jul 19 |
| Scallions | Dec 22 | Feb 2–Feb 16 | 315 | two-plantings: Plant Feb 2 and again by Oct 1; both mature before Dec 14. | Oct 1 |
| Turnip | — | Feb 2–Feb 16 | 315 | two-plantings: Plant Feb 2 and again by Oct 11; both mature before Dec 14. | Oct 11 |
| Kohlrabi | — | Jan 19–Feb 2 | 329 | two-plantings: Plant Jan 19 and again by Oct 6; both mature before Dec 14. | Oct 6 |
| Bok Choy | Feb 2 | Feb 23–Mar 2 | 280 | two-plantings: Plant Feb 23 and again by Oct 2; both mature before Nov 30. | Oct 2 |
| Collards | Dec 22 | Feb 2–Feb 16 | 315 | two-plantings: Plant Feb 2 and again by Oct 1; both mature before Dec 14. | Oct 1 |
| Cantaloupe | Feb 16 | Mar 16–Mar 23 | 224 | fits: 85 days to maturity, 224 available after Mar 16. | Jul 19 |
| Chives | Dec 8 | Mar 9–Mar 16 | 280 | fits: 90 days to maturity, 280 available after Mar 9. | — |
| Dill | — | Jan 5–Mar 30 | 329 | two-plantings: Plant Jan 5 and again by Sep 22; both mature before Nov 30. | Sep 22 |
| Oregano | Dec 22 | Mar 9–Mar 16 | 280 | fits: 80 days to maturity, 280 available after Mar 9. | — |
| Rosemary | Dec 8 | Mar 9–Mar 16 | 266 | fits: 80 days to maturity, 266 available after Mar 9. | — |
| Sage | Jan 5 | Mar 9–Mar 16 | 280 | fits: 75 days to maturity, 280 available after Mar 9. | — |
| Thyme | Dec 22 | Mar 9–Mar 16 | 280 | fits: 90 days to maturity, 280 available after Mar 9. | — |
| Calendula | Jan 19 | Feb 16–Mar 2 | 287 | two-plantings: Plant Feb 16 and again by Sep 27; both mature before Nov 30. | Sep 27 |
| Cosmos | Feb 2 | Mar 2–Mar 16 | 252 | two-plantings: Plant Mar 2 and again by Aug 27; both mature before Nov 9. | Aug 27 |
| Lavender | Dec 8 | Mar 2–Mar 16 | 287 | fits: 90 days to maturity, 287 available after Mar 2. | — |
| Marigolds | Jan 19 | Mar 2–Mar 9 | 252 | two-plantings: Plant Mar 2 and again by Sep 6; both mature before Nov 9. | Sep 6 |
| Melons | Feb 16 | Mar 16–Mar 23 | 224 | fits: 85 days to maturity, 224 available after Mar 16. | Jul 19 |
| Mint | — | Mar 2–Mar 16 | 287 | fits: 90 days to maturity, 287 available after Mar 2. | — |
| Nasturtiums | Feb 2 | Mar 2–Mar 9 | 252 | two-plantings: Plant Mar 2 and again by Sep 1; both mature before Nov 9. | Sep 1 |
| Pole Beans | — | Mar 9–Mar 23 | 245 | fits: 65 days to maturity, 245 available after Mar 9. | Aug 22 |
| Spaghetti Squash | Feb 16 | Mar 16–Mar 23 | 231 | fits: 90 days to maturity, 231 available after Mar 16. | Jul 21 |
| Sunflowers | — | Mar 2–Mar 16 | 252 | fits: 70 days to maturity, 252 available after Mar 2. | Aug 17 |
| Tomatillos | Jan 5 | Mar 9–Mar 16 | 231 | fits: 75 days to maturity, 231 available after Mar 9. | Jul 29 |
| Watermelon | Feb 16 | Mar 9–Mar 16 | 231 | fits: 80 days to maturity, 231 available after Mar 9. | Jul 24 |
| Yellow Squash | Feb 16 | Mar 16–Mar 23 | 238 | two-plantings: Plant Mar 16 and again by Sep 1; both mature before Nov 9. | Sep 1 |
| Zinnias | Feb 2 | Mar 2–Mar 16 | 252 | two-plantings: Plant Mar 2 and again by Aug 27; both mature before Nov 9. | Aug 27 |
Month by month in Caldwell
| Month | What to do |
|---|---|
| January | Start indoors: Broccoli (Jan 5), Brussel Sprouts (Jan 5), Cabbage (Jan 5), Lettuce (Jan 5), Sage (Jan 5), Swiss Chard (Jan 5), +8 more. Direct sow from: Arugula (Jan 5), Beets (Jan 5), Dill (Jan 5), Peas (Jan 5), Radish (Jan 5), Spinach (Jan 5), +1 more. Plant: Strawberry (Jan 26). |
| February | Start indoors: Bok Choy (Feb 2), Corn (Feb 2), Cosmos (Feb 2), Nasturtiums (Feb 2), Okra (Feb 2), Zinnias (Feb 2), +9 more. Direct sow from: Cilantro (Feb 2), Turnip (Feb 2), Carrots (Feb 9), Potatoes (Feb 16). Transplant from: Broccoli (Feb 2), Brussel Sprouts (Feb 2), Cabbage (Feb 2), Collards (Feb 2), Kale (Feb 2), Lettuce (Feb 2), +6 more. |
| March | Direct sow from: Sunflowers (Mar 2), Beans (Mar 9), Pole Beans (Mar 9). Transplant from: Cosmos (Mar 2), Lavender (Mar 2), Marigolds (Mar 2), Mint (Mar 2), Nasturtiums (Mar 2), Zinnias (Mar 2), +23 more. Last frost around March 2. |
| April | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| 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 11), Pumpkin (Jul 11), Cantaloupe (Jul 19), Celery (Jul 19), Melons (Jul 19), Spaghetti Squash (Jul 21), +4 more. |
| August | Last sowing dates: Eggplant (Aug 3), Corn (Aug 5), Sunflowers (Aug 17), Brussel Sprouts (Aug 22), Pole Beans (Aug 22), Basil (Aug 27), +4 more. |
| September | Last sowing dates: Nasturtiums (Sep 1), Okra (Sep 1), Yellow Squash (Sep 1), Zucchini (Sep 1), Cauliflower (Sep 2), Beans (Sep 3), +10 more. |
| October | Last sowing dates: Collards (Oct 1), Scallions (Oct 1), Bok Choy (Oct 2), Lettuce (Oct 2), Kale (Oct 6), Kohlrabi (Oct 6), +4 more. |
| November | Direct sow from: Garlic (Nov 23). First frost around November 23. |
| December | Start indoors: Chives (Dec 8), Lavender (Dec 8), Onion (Dec 8), Rosemary (Dec 8), Celery (Dec 22), Collards (Dec 22), +5 more. Last sowing dates: Garlic (Dec 14). |
Frequently Asked Questions
What is the last frost date for Caldwell, TX (ZIP 77836)?
The median last spring frost date for Caldwell, TX (ZIP code 77836) is around March 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 February 8; one in ten it runs past March 26.
What is the first fall frost date in Caldwell, TX?
The median first fall frost date for Caldwell, TX is around November 23. 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 2 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Caldwell, TX?
The frost-free growing season in Caldwell is about 266 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 Caldwell (266 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 Caldwell, TX?
Caldwell, TX is in USDA hardiness zone 9a (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 Caldwell, TX?
Start tomatoes indoors Jan 26 and plant out Mar 16 in Caldwell. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Caldwell?
Two: plant Feb 2 and again by Oct 2; both mature before Nov 30.
When do I plant garlic in Caldwell?
Nov 23 to Dec 14; it overwinters and is ready the following summer.
Can I get two tomato crops in Caldwell?
Yes: plant out Mar 16 for a summer crop, and set out a second round of transplants by Jul 24 for a fall crop.
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