Kingsville, TX planting zone & frost dates
Kingsville is in USDA hardiness zone 9b. The last spring frost usually comes around January 25 and the first fall frost around December 20, for a growing season of about 329 days.
Planting calendar for Kingsville
Dates are counted from the average last spring frost (January 25) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.
| Crop | When |
|---|---|
| Tomatoes | Start seeds indoors: Nov 30 – Dec 14 Transplant outdoors: Feb 1 – Feb 8 |
| Peppers | Start seeds indoors: Nov 16 – Nov 30 Transplant outdoors: Feb 8 – Feb 15 |
| Eggplant | Start seeds indoors: Nov 16 – Nov 30 Transplant outdoors: Feb 8 – Feb 15 |
| Broccoli | Start seeds indoors: Nov 16 – Nov 30 Transplant outdoors: Dec 28 – Jan 11 |
| Cabbage | Start seeds indoors: Nov 16 – Nov 30 Transplant outdoors: Dec 28 – Jan 11 |
| Onions (sets) | Plant outdoors: Dec 28 – Jan 11 |
| Peas | Sow outdoors: Dec 14 – Dec 28 |
| Spinach | Sow outdoors: Dec 14 – Dec 28 |
| Lettuce | Sow outdoors: Dec 28 – Jan 11 |
| Carrots | Sow outdoors: Dec 28 – Jan 11 |
| Potatoes | Plant outdoors: Dec 28 – Jan 11 |
| Beans | Sow outdoors: Feb 1 – Feb 8 |
| Sweet corn | Sow outdoors: Feb 1 – Feb 8 |
| Cucumbers | Sow outdoors: Feb 1 – Feb 8 |
| Squash & zucchini | Sow outdoors: Feb 1 – Feb 8 |
| Basil | Start seeds indoors: Dec 14 – Dec 28 Transplant outdoors: Feb 1 – Feb 8 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Oct 25 (8 weeks before the average first fall frost on Dec 20).
Useful for zone 9b gardens
- Seed starting kit with dome — to start seeds indoors before the last frost
- LED grow light for seedlings — stops leggy seedlings
- Frost cloth / plant covers — for late spring and early fall frosts
- Soil thermometer — warm-season crops need soil above 60°F
- Shade cloth — for hot summers
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Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Dec 18 | Jan 25 | Mar 3 |
| First 32°F frost in fall is before | Jan 21 | Dec 20 | Nov 25 |
How to read it: in spring there is a 10% chance of a frost after March 3, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 25. A hard freeze (28°F) usually ends around January 9.
Hardiness zone by ZIP code in Kingsville
- 78363 zone 9b
- 78364 zone 9b
Nearby cities
- Alice zone 9b, last frost Jan 29
- Robstown zone 9b, last frost Jan 26
- Corpus Christi zone 10a, last frost Jan 31
- Portland zone 10a, last frost Jan 31
- Beeville zone 9b, last frost Feb 17
- Rockport zone 9b, last frost Jan 31
- Raymondville zone 10a, last frost Jan 21
- Edinburg zone 10a
Questions
What growing zone is Kingsville, TX?
Kingsville is in USDA Plant Hardiness Zone 9b (average extreme winter low 25°F to 30°F), according to the USDA 2023 map.
When is the last frost in Kingsville?
The average last spring frost (32°F) in Kingsville is January 25. There is still a 10% chance of frost until March 3.
When can I plant tomatoes in Kingsville?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Feb 1 – Feb 8. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Kingsville, TX (USC00414810), 1.8 km (1.1 mi) from the city center, elevation 17 m, based on 22 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.