When to plant in Lewisville, TX
USDA Zone 8bLewisville, Texas frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Lewisville enjoys a long ~248-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. Zone 8b means many perennials and even some tender shrubs overwinter in Lewisville, while your frost dates still decide when annuals go out.
Frost probability
GRAPEVINE DAM · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Lewisville’s own odds, recorded at GRAPEVINE DAM.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 15 | Mar 29 | Mar 8 | Oct 26 | Nov 7 | Nov 23 |
| 32°F | Apr 3 | Mar 14 | Feb 23 | Nov 2 | Nov 17 | Dec 4 |
| 28°F | Mar 20 | Mar 1 | Feb 4 | Nov 9 | Nov 29 | Dec 20 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Lewisville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 20 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Lewisville planting FAQ
When is the last spring frost in Lewisville, TX?
Plan for the last spring frost in Lewisville around March 14 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Lewisville, TX?
The first fall frost in Lewisville typically arrives around November 17 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Lewisville in?
Lewisville is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Lewisville?
There are roughly 248 frost-free days in Lewisville (a long growing season), running from the average last frost around March 14 to the first fall frost near November 17.
When should I plant tomatoes in Lewisville?
In Lewisville, start tomato seeds indoors around January 17–January 31, then transplant seedlings outdoors around March 21 once the danger of frost has passed.
Never miss a window in Lewisville
An email when it’s time to start seeds, transplant, and sow — timed to Lewisville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- The Colony · 8 km
- Highland Village · 9 km
- Carrollton · 10 km
- Coppell · 10 km
- Flower Mound · 13 km
- Corinth · 14 km
- Lantana · 14 km
- Grapevine · 16 km
Frost dates recorded at GRAPEVINE DAM, 13 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Lewisville, TX — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00413691. Retrieved from https://blissgarden.com/texas/lewisville.