When to plant in Carrollton, TX
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Carrollton, Texas — all computed from Carrollton's nearest NOAA weather station.
Carrollton enjoys a long ~259-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. In zone 8b, Carrollton supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
RICHARDSON · 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 Carrollton’s own odds, recorded at RICHARDSON.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 11 | Mar 21 | Mar 2 | Oct 23 | Nov 10 | Nov 27 |
| 32°F | Mar 29 | Mar 7 | Feb 18 | Nov 2 | Nov 21 | Dec 9 |
| 28°F | Mar 12 | Feb 24 | Jan 27 | Nov 14 | Dec 4 | Dec 26 |
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 Carrollton, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 15 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.
Carrollton planting FAQ
When is the last spring frost in Carrollton, TX?
Carrollton's average last spring frost falls near March 7 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Carrollton, TX?
Expect Carrollton's first fall frost near November 21 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Carrollton in?
Carrollton is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Carrollton?
Carrollton has about 259 frost-free days — a long growing season — between the average last spring frost (March 7) and first fall frost (November 21).
When should I plant tomatoes in Carrollton?
For Carrollton, sow tomatoes indoors about January 10–January 24 and move the seedlings out around March 14, after the last spring frost.
Never miss a window in Carrollton
An email when it’s time to start seeds, transplant, and sow — timed to Carrollton’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Addison · 7 km
- Farmers Branch · 7 km
- Coppell · 9 km
- Lewisville · 10 km
- The Colony · 11 km
- Plano · 16 km
- Irving · 16 km
- Grapevine · 17 km
Frost dates recorded at RICHARDSON, 15 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 Carrollton, TX — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00417588. Retrieved from https://blissgarden.com/texas/carrollton.