When to plant in Tulsa, OK
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Tulsa, Oklahoma — is derived from the closest NOAA station with complete climate normals.
In zone 7b, Tulsa supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
TULSA INTL AP · 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 Tulsa’s own odds, recorded at TULSA INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 27 | Apr 10 | Mar 26 | Oct 11 | Oct 26 | Nov 6 |
| 32°F | Apr 15 | Mar 31 | Mar 11 | Oct 20 | Nov 4 | Nov 19 |
| 28°F | Apr 5 | Mar 17 | Feb 28 | Oct 31 | Nov 13 | Dec 1 |
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 Tulsa, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 16 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.
Tulsa planting FAQ
When is the last spring frost in Tulsa, OK?
Tulsa's average last spring frost falls near March 31 — 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 Tulsa, OK?
The first fall frost in Tulsa typically arrives around November 4 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Tulsa in?
Tulsa is in USDA hardiness zone 7b. In zone 7b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Tulsa?
Tulsa has about 218 frost-free days — a long growing season — between the average last spring frost (March 31) and first fall frost (November 4).
When should I plant tomatoes in Tulsa?
For Tulsa, sow tomatoes indoors about February 3–February 17 and move the seedlings out around April 7, after the last spring frost.
Never miss a window in Tulsa
An email when it’s time to start seeds, transplant, and sow — timed to Tulsa’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Broken Arrow · 15 km
- Jenks · 16 km
- Owasso · 19 km
- Bixby · 20 km
- Sand Springs · 21 km
- Glenpool · 22 km
- Sapulpa · 24 km
- Coweta · 28 km
Frost dates recorded at TULSA INTL AP, 8 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 Tulsa, OK — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00013968. Retrieved from https://blissgarden.com/oklahoma/tulsa.