When to plant in Bartlesville, OK
USDA Zone 7aBartlesville, Oklahoma frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 7a means many perennials and even some tender shrubs overwinter in Bartlesville, while your frost dates still decide when annuals go out.
Frost probability
BARTLESVILLE 3 · 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 Bartlesville’s own odds, recorded at BARTLESVILLE 3.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 5 | Apr 23 | Apr 8 | Oct 1 | Oct 15 | Oct 28 |
| 32°F | Apr 30 | Apr 11 | Mar 27 | Oct 8 | Oct 24 | Nov 6 |
| 28°F | Apr 15 | Apr 1 | Mar 15 | Oct 19 | Nov 2 | Nov 15 |
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 Bartlesville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 27 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.
Bartlesville planting FAQ
When is the last spring frost in Bartlesville, OK?
Bartlesville's average last spring frost falls near April 11 — 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 Bartlesville, OK?
Expect Bartlesville's first fall frost near October 24 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Bartlesville in?
Bartlesville is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Bartlesville?
There are roughly 196 frost-free days in Bartlesville (a moderate growing season), running from the average last frost around April 11 to the first fall frost near October 24.
When should I plant tomatoes in Bartlesville?
In Bartlesville, start tomato seeds indoors around February 14–February 28, then transplant seedlings outdoors around April 18 once the danger of frost has passed.
Never miss a window in Bartlesville
An email when it’s time to start seeds, transplant, and sow — timed to Bartlesville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Owasso · 51 km
- Claremore · 56 km
- Tulsa · 68 km
- Sand Springs · 69 km
- Broken Arrow · 79 km
- Jenks · 82 km
- Sapulpa · 83 km
- Glenpool · 88 km
Frost dates recorded at BARTLESVILLE 3, 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 Bartlesville, OK — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00340546. Retrieved from https://blissgarden.com/oklahoma/bartlesville.