City	Sow outdoors	Last frost
Houston	Feb 15 to Mar 1	Feb 2
San Antonio	Mar 4 to Mar 18	Feb 25
Dallas	Mar 9 to Mar 23	Mar 2
Fort Worth	Mar 12 to Mar 26	Mar 5
Austin	Feb 27 to Mar 13	Feb 20
El Paso	Mar 9 to Mar 23	Mar 2
Arlington	Mar 16 to Mar 30	Mar 9
Corpus Christi	Feb 15 to Mar 1	Jan 22
Plano	Mar 14 to Mar 28	Mar 7
Lubbock	Mar 31 to Apr 14	Mar 24
Laredo	Feb 15 to Mar 1	Jan 25
Irving	Mar 15 to Mar 29	Mar 8
Garland	Mar 14 to Mar 28	Mar 7
Frisco	Mar 14 to Mar 28	Mar 7
McKinney	Mar 24 to Apr 7	Mar 17
Grand Prairie	Mar 27 to Apr 10	Mar 20
Amarillo	Apr 22 to May 6	Apr 15
Brownsville	Feb 15 to Mar 1	Jan 9
Denton	Mar 20 to Apr 3	Mar 13
Killeen	Mar 21 to Apr 4	Mar 14
Mesquite	Mar 19 to Apr 2	Mar 12
McAllen	Feb 15 to Mar 1	Jan 9
Pasadena	Feb 15 to Mar 1	Jan 30
Waco	Mar 16 to Mar 30	Mar 9
Midland	Apr 2 to Apr 16	Mar 26
Round Rock	Mar 18 to Apr 1	Mar 11
Lewisville	Mar 21 to Apr 4	Mar 14
Carrollton	Mar 14 to Mar 28	Mar 7
Abilene	Mar 27 to Apr 10	Mar 20
Pearland	Feb 15 to Mar 1	Jan 31
College Station	Mar 6 to Mar 20	Feb 27
Odessa	Mar 22 to Apr 5	Mar 15
New Braunfels	Mar 15 to Mar 29	Mar 8
League City	Feb 15 to Mar 1	Jan 31
Conroe	Mar 3 to Mar 17	Feb 24
Richardson	Mar 14 to Mar 28	Mar 7
The Woodlands	Feb 26 to Mar 12	Feb 19
Tyler	Mar 14 to Mar 28	Mar 7
Allen	Mar 25 to Apr 8	Mar 18
Beaumont	Feb 21 to Mar 7	Feb 14
Edinburg	Feb 15 to Mar 1	Jan 8
Sugar Land	Feb 16 to Mar 2	Feb 9
Georgetown	Mar 13 to Mar 27	Mar 6
Wichita Falls	Apr 2 to Apr 16	Mar 26
San Angelo	Mar 27 to Apr 10	Mar 20
Temple	Mar 21 to Apr 4	Mar 14
Atascocita	Feb 20 to Mar 6	Feb 13
Bryan	Mar 6 to Mar 20	Feb 27
Leander	Mar 13 to Mar 27	Mar 6
Mission	Feb 15 to Mar 1	Jan 9
Baytown	Feb 27 to Mar 13	Feb 20
Mansfield	Mar 16 to Mar 30	Mar 9
Longview	Mar 14 to Mar 28	Mar 7
Pharr	Feb 15 to Mar 1	Jan 9
Flower Mound	Mar 21 to Apr 4	Mar 14
Cedar Park	Mar 18 to Apr 1	Mar 11
San Marcos	Mar 7 to Mar 21	Feb 28
Missouri City	Feb 22 to Mar 8	Feb 15
Harlingen	Feb 15 to Mar 1	Jan 9
North Richland Hills	Mar 17 to Mar 31	Mar 10
Kyle	Mar 7 to Mar 21	Feb 28
Pflugerville	Mar 18 to Apr 1	Mar 11
Rowlett	Mar 17 to Mar 31	Mar 10
Spring	Feb 20 to Mar 6	Feb 13
Victoria	Feb 21 to Mar 7	Feb 14
Fulshear	Feb 16 to Mar 2	Feb 9
Celina	Mar 31 to Apr 14	Mar 24
Wylie	Mar 17 to Mar 31	Mar 10
Little Elm	Mar 20 to Apr 3	Mar 13
Euless	Mar 15 to Mar 29	Mar 8
Texas City	Feb 15 to Mar 1	Jan 25
Burleson	Mar 28 to Apr 11	Mar 21
DeSoto	Mar 13 to Mar 27	Mar 6
Port Arthur	Feb 21 to Mar 7	Feb 14
Rockwall	Mar 17 to Mar 31	Mar 10
Galveston	Feb 15 to Mar 1	Jan 18
Sherman	Mar 21 to Apr 4	Mar 14
Grapevine	Mar 21 to Apr 4	Mar 14
Waxahachie	Mar 23 to Apr 6	Mar 16
Cedar Hill	Mar 27 to Apr 10	Mar 20
Huntsville	Mar 8 to Mar 22	Mar 1
Bedford	Mar 16 to Mar 30	Mar 9
Midlothian	Mar 23 to Apr 6	Mar 16
The Colony	Mar 14 to Mar 28	Mar 7
Keller	Mar 19 to Apr 2	Mar 12
Hutto	Mar 15 to Mar 29	Mar 8
Schertz	Feb 28 to Mar 14	Feb 21
Prosper	Mar 24 to Apr 7	Mar 17
Haltom City	Mar 17 to Mar 31	Mar 10
Weslaco	Feb 15 to Mar 1	Jan 8
Channelview	Feb 15 to Mar 1	Feb 2
Princeton	Mar 25 to Apr 8	Mar 18
Rosenberg	Feb 16 to Mar 2	Feb 9
Forney	Mar 18 to Apr 1	Mar 11
Coppell	Mar 21 to Apr 4	Mar 14
Friendswood	Feb 15 to Mar 1	Jan 31
Seguin	Mar 8 to Mar 22	Mar 1
Weatherford	Apr 1 to Apr 15	Mar 25
Lancaster	Mar 19 to Apr 2	Mar 12
Copperas Cove	Mar 21 to Apr 4	Mar 14
Cleburne	Mar 24 to Apr 7	Mar 17
Cibolo	Feb 28 to Mar 14	Feb 21
Hurst	Mar 17 to Mar 31	Mar 10
Duncanville	Mar 27 to Apr 10	Mar 20
Socorro	Mar 9 to Mar 23	Mar 2
Farmers Branch	Mar 9 to Mar 23	Mar 2
La Porte	Feb 15 to Mar 1	Jan 31
San Juan	Feb 15 to Mar 1	Jan 9
Mission Bend	Feb 15 to Mar 1	Feb 2
Greenville	Mar 25 to Apr 8	Mar 18
Texarkana	Mar 22 to Apr 5	Mar 15
Anna	Mar 24 to Apr 7	Mar 17
Harker Heights	Mar 21 to Apr 4	Mar 14
Timberwood Park	Mar 5 to Mar 19	Feb 26
Del Rio	Feb 23 to Mar 9	Feb 16
Lufkin	Mar 18 to Apr 1	Mar 11
Deer Park	Feb 15 to Mar 1	Feb 2
Canyon Lake	Mar 8 to Mar 22	Mar 1
Sachse	Mar 17 to Mar 31	Mar 10
Nacogdoches	Mar 20 to Apr 3	Mar 13
Converse	Feb 28 to Mar 14	Feb 21
West Odessa	Mar 22 to Apr 5	Mar 15
Southlake	Mar 21 to Apr 4	Mar 14
Alvin	Feb 21 to Mar 7	Feb 14
Melissa	Mar 24 to Apr 7	Mar 17
Fate	Mar 17 to Mar 31	Mar 10
Eagle Pass	Feb 26 to Mar 12	Feb 19
Katy	Feb 15 to Mar 1	Feb 2
Royse City	Mar 17 to Mar 31	Mar 10
Lake Jackson	Feb 20 to Mar 6	Feb 13
Balch Springs	Mar 19 to Apr 2	Mar 12
Denison	Mar 21 to Apr 4	Mar 14
Saginaw	Mar 18 to Apr 1	Mar 11
Belton	Mar 21 to Apr 4	Mar 14
Colleyville	Mar 21 to Apr 4	Mar 14
Ennis	Mar 15 to Mar 29	Mar 8
Kerrville	Apr 3 to Apr 17	Mar 27
Corsicana	Mar 21 to Apr 4	Mar 14
University Park	Mar 9 to Mar 23	Mar 2
Corinth	Mar 20 to Apr 3	Mar 13
Paris	Mar 21 to Apr 4	Mar 14
Horizon City	Mar 9 to Mar 23	Mar 2
Sienna	Feb 22 to Mar 8	Feb 15
San Benito	Feb 15 to Mar 1	Jan 9
Pecan Grove	Feb 16 to Mar 2	Feb 9
Kingsville	Feb 15 to Mar 1	Jan 25
Cloverleaf	Feb 15 to Mar 1	Feb 2
Marshall	Mar 27 to Apr 10	Mar 20
Benbrook	Mar 21 to Apr 4	Mar 14
Alton	Feb 15 to Mar 1	Jan 23
Fresno	Feb 22 to Mar 8	Feb 15
Boerne	Mar 22 to Apr 5	Mar 15
Terrell	Mar 18 to Apr 1	Mar 11
Manor	Mar 11 to Mar 25	Mar 4
Watauga	Mar 17 to Mar 31	Mar 10
Big Spring	Mar 27 to Apr 10	Mar 20
Dickinson	Feb 15 to Mar 1	Jan 31
Stephenville	Apr 5 to Apr 19	Mar 29
Angleton	Feb 15 to Mar 1	Jan 29
Seagoville	Mar 19 to Apr 2	Mar 12
Murphy	Mar 17 to Mar 31	Mar 10
Crowley	Mar 28 to Apr 11	Mar 21
Brushy Creek	Mar 18 to Apr 1	Mar 11
Portland	Feb 15 to Mar 1	Jan 31
Manvel	Feb 15 to Mar 1	Jan 31
Alamo	Feb 15 to Mar 1	Jan 9
Iowa Colony	Feb 15 to Mar 1	Jan 31
Universal City	Feb 28 to Mar 14	Feb 21
Red Oak	Mar 23 to Apr 6	Mar 16
Glenn Heights	Mar 23 to Apr 6	Mar 16
La Marque	Feb 15 to Mar 1	Jan 31

Questions

When should I plant butternut squash in Texas?

In Houston, sow outdoors from February 15 to March 1. Across Texas the window opens between February 15 and April 22, depending on the local last frost.

How is this date worked out?

Sow outdoors 1–3 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.