When to plant in Broken Arrow, OK
USDA Zone 7bBroken Arrow, Oklahoma frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 7b, Broken Arrow supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
BIXBY · 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 Broken Arrow’s own odds, recorded at BIXBY.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 29 | Apr 13 | Mar 27 | Oct 8 | Oct 22 | Nov 4 |
| 32°F | Apr 20 | Apr 1 | Mar 12 | Oct 16 | Nov 1 | Nov 13 |
| 28°F | Apr 7 | Mar 17 | Feb 28 | Oct 26 | Nov 9 | Nov 27 |
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 Broken Arrow, 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.
Broken Arrow planting FAQ
When is the last spring frost in Broken Arrow, OK?
Broken Arrow's average last spring frost falls near April 1 — 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 Broken Arrow, OK?
The first fall frost in Broken Arrow typically arrives around November 1 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Broken Arrow in?
Broken Arrow 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 Broken Arrow?
Broken Arrow has about 214 frost-free days — a long growing season — between the average last spring frost (April 1) and first fall frost (November 1).
When should I plant tomatoes in Broken Arrow?
For Broken Arrow, sow tomatoes indoors about February 4–February 18 and move the seedlings out around April 8, after the last spring frost.
Never miss a window in Broken Arrow
An email when it’s time to start seeds, transplant, and sow — timed to Broken Arrow’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at BIXBY, 11 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 Broken Arrow, OK — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00340782. Retrieved from https://blissgarden.com/oklahoma/broken-arrow.