Seagoville, TX planting zone & frost dates

Seagoville is in USDA hardiness zone 8b. The last spring frost usually comes around March 12 and the first fall frost around November 19, for a growing season of about 253 days.

USDA hardiness zone8bavg. extreme winter low 15°F to 20°F

Average last spring frostMarch 1290% chance of no frost after March 31

Average first fall frostNovember 1910% chance of frost by November 2

Growing season253 daysfrost-free days in an average year

Planting calendar for Seagoville

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 24 (8 weeks before the average first fall frost on Nov 19).

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	Mar 31
First 32°F frost in fall is before	Dec 6	Nov 19	Nov 2

How to read it: in spring there is a 10% chance of a frost after March 31, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 2. A hard freeze (28°F) usually ends around March 1.

Hardiness zone by ZIP code in Seagoville

75159 zone 8b

Nearby cities

Balch Springs zone 8b, last frost Mar 12
Forney zone 8b, last frost Mar 11
Mesquite zone 8b, last frost Mar 2
Lancaster zone 8b, last frost Mar 12
Rowlett zone 8b, last frost Mar 10
Terrell zone 8b, last frost Mar 11
Garland zone 8b, last frost Mar 7
Red Oak zone 8b, last frost Mar 16

All cities in Texas → · Other zone 8b cities →

Questions

What growing zone is Seagoville, TX?

Seagoville 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 Seagoville?

The average last spring frost (32°F) in Seagoville is March 12. There is still a 10% chance of frost until March 31.

When can I plant tomatoes in Seagoville?

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 Ferris, TX (USC00413133), 16.4 km (10.2 mi) from the city center, elevation 143 m, based on 20 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.