Keller, TX planting zone & frost dates
Keller is in USDA hardiness zone 8b. The last spring frost usually comes around March 12 and the first fall frost around November 17, for a growing season of about 249 days.
Planting calendar for Keller
Dates are counted from the average last spring frost (March 12) 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: Jan 15 – Jan 29 Transplant outdoors: Mar 19 – Mar 26 |
| Peppers | Start seeds indoors: Jan 1 – Jan 15 Transplant outdoors: Mar 26 – Apr 2 |
| Eggplant | Start seeds indoors: Jan 1 – Jan 15 Transplant outdoors: Mar 26 – Apr 2 |
| Broccoli | Start seeds indoors: Jan 1 – Jan 15 Transplant outdoors: Feb 12 – Feb 26 |
| Cabbage | Start seeds indoors: Jan 1 – Jan 15 Transplant outdoors: Feb 12 – Feb 26 |
| Onions (sets) | Plant outdoors: Feb 12 – Feb 26 |
| Peas | Sow outdoors: Jan 29 – Feb 12 |
| Spinach | Sow outdoors: Jan 29 – Feb 12 |
| Lettuce | Sow outdoors: Feb 12 – Feb 26 |
| Carrots | Sow outdoors: Feb 12 – Feb 26 |
| Potatoes | Plant outdoors: Feb 12 – Feb 26 |
| Beans | Sow outdoors: Mar 19 – Mar 26 |
| Sweet corn | Sow outdoors: Mar 19 – Mar 26 |
| Cucumbers | Sow outdoors: Mar 19 – Mar 26 |
| Squash & zucchini | Sow outdoors: Mar 19 – Mar 26 |
| Basil | Start seeds indoors: Jan 29 – Feb 12 Transplant outdoors: Mar 19 – Mar 26 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Sep 22 (8 weeks before the average first fall frost on Nov 17).
Useful for zone 8b 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
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Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Feb 21 | Mar 12 | Apr 3 |
| First 32°F frost in fall is before | Dec 5 | Nov 17 | Oct 31 |
How to read it: in spring there is a 10% chance of a frost after April 3, so that is a safe date for tender plants. In fall there is a 10% chance of frost before October 31. A hard freeze (28°F) usually ends around February 28.
Hardiness zone by ZIP code in Keller
- 76244 zone 8b
- 76248 zone 8b
Nearby cities
- Watauga zone 8b, last frost Mar 10
- Trophy Club zone 8b, last frost Mar 12
- North Richland Hills zone 8b, last frost Mar 10
- Colleyville zone 8b, last frost Mar 14
- Southlake zone 8b, last frost Mar 14
- Saginaw zone 8b, last frost Mar 11
- Haltom City zone 8b, last frost Mar 10
- Hurst zone 8b, last frost Mar 9
Questions
What growing zone is Keller, TX?
Keller is in USDA Plant Hardiness Zone 8b (average extreme winter low 15°F to 20°F), according to the USDA 2023 map.
When is the last frost in Keller?
The average last spring frost (32°F) in Keller is March 12. There is still a 10% chance of frost until April 3.
When can I plant tomatoes in Keller?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Mar 19 – Mar 26. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Ft Worth Alliance Ap, TX (USW00053909), 7.5 km (4.7 mi) from the city center, elevation 209 m, based on 21 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.