When to plant in Plano, TX
USDA Zone 8bPlano, Texas frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
A generous ~259-day season lets Plano gardeners direct-sow more and still ripen long-maturity crops like melons and winter squash. In zone 8b, Plano 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 Plano’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 Plano, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 21 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.
Plano planting FAQ
When is the last spring frost in Plano, TX?
On average, the last spring frost in Plano is around March 7 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Plano, TX?
The first fall frost in Plano typically arrives around November 21 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Plano in?
Plano is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Plano?
Plano 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 Plano?
For Plano, 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 Plano
An email when it’s time to start seeds, transplant, and sow — timed to Plano’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Allen · 9 km
- Richardson · 9 km
- Addison · 13 km
- Frisco · 14 km
- Murphy · 14 km
- The Colony · 15 km
- Carrollton · 16 km
- Fairview · 16 km
Frost dates recorded at RICHARDSON, 6 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 Plano, TX — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00417588. Retrieved from https://blissgarden.com/texas/plano.