Marshall, TX planting zone & frost dates
Marshall is in USDA hardiness zone 8b. The last spring frost usually comes around March 20 and the first fall frost around November 11, for a growing season of about 233 days.
Planting calendar for Marshall
Dates are counted from the average last spring frost (March 20) 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 23 – Feb 6 Transplant outdoors: Mar 27 – Apr 3 |
| Peppers | Start seeds indoors: Jan 9 – Jan 23 Transplant outdoors: Apr 3 – Apr 10 |
| Eggplant | Start seeds indoors: Jan 9 – Jan 23 Transplant outdoors: Apr 3 – Apr 10 |
| Broccoli | Start seeds indoors: Jan 9 – Jan 23 Transplant outdoors: Feb 20 – Mar 6 |
| Cabbage | Start seeds indoors: Jan 9 – Jan 23 Transplant outdoors: Feb 20 – Mar 6 |
| Onions (sets) | Plant outdoors: Feb 20 – Mar 6 |
| Peas | Sow outdoors: Feb 6 – Feb 20 |
| Spinach | Sow outdoors: Feb 6 – Feb 20 |
| Lettuce | Sow outdoors: Feb 20 – Mar 6 |
| Carrots | Sow outdoors: Feb 20 – Mar 6 |
| Potatoes | Plant outdoors: Feb 20 – Mar 6 |
| Beans | Sow outdoors: Mar 27 – Apr 3 |
| Sweet corn | Sow outdoors: Mar 27 – Apr 3 |
| Cucumbers | Sow outdoors: Mar 27 – Apr 3 |
| Squash & zucchini | Sow outdoors: Mar 27 – Apr 3 |
| Basil | Start seeds indoors: Feb 6 – Feb 20 Transplant outdoors: Mar 27 – Apr 3 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Sep 16 (8 weeks before the average first fall frost on Nov 11).
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 28 | Mar 20 | Apr 7 |
| First 32°F frost in fall is before | Nov 30 | Nov 11 | Oct 27 |
How to read it: in spring there is a 10% chance of a frost after April 7, so that is a safe date for tender plants. In fall there is a 10% chance of frost before October 27. A hard freeze (28°F) usually ends around March 5.
Hardiness zone by ZIP code in Marshall
- 75670 zone 8b
- 75671 zone 8b
- 75672 zone 8b
Nearby cities
- Longview zone 8b, last frost Mar 7
- Kilgore zone 8b, last frost Mar 8
- Henderson zone 8b, last frost Mar 15
- Mount Pleasant zone 8b, last frost Mar 24
- Texarkana zone 8b, last frost Mar 15
- Tyler zone 8b, last frost Mar 7
- Nacogdoches zone 8b, last frost Mar 13
- Jacksonville zone 8b, last frost Mar 22
Questions
What growing zone is Marshall, TX?
Marshall 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 Marshall?
The average last spring frost (32°F) in Marshall is March 20. There is still a 10% chance of frost until April 7.
When can I plant tomatoes in Marshall?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Mar 27 – Apr 3. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Marshall, TX (USC00415618), 7.2 km (4.5 mi) from the city center, elevation 92 m, based on 29 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.