When to plant in Oakton, VA
USDA Zone 7bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Oakton, Virginia — all computed from Oakton's nearest NOAA weather station.
In zone 7b, Oakton supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
VIENNA · 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 Oakton’s own odds, recorded at VIENNA.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 10 | Apr 25 | Apr 11 | Oct 7 | Oct 19 | Nov 1 |
| 32°F | Apr 28 | Apr 14 | Mar 30 | Oct 17 | Oct 29 | Nov 11 |
| 28°F | Apr 16 | Apr 2 | Mar 18 | Oct 26 | Nov 8 | Nov 23 |
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 Oakton, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 17 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.
Oakton planting FAQ
When is the last spring frost in Oakton, VA?
Plan for the last spring frost in Oakton around April 14 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Oakton, VA?
The first fall frost in Oakton typically arrives around October 29 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Oakton in?
Oakton 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 Oakton?
Oakton has about 198 frost-free days — a moderate growing season — between the average last spring frost (April 14) and first fall frost (October 29).
When should I plant tomatoes in Oakton?
For Oakton, sow tomatoes indoors about February 17–March 3 and move the seedlings out around April 21, after the last spring frost.
Never miss a window in Oakton
An email when it’s time to start seeds, transplant, and sow — timed to Oakton’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Vienna · 4 km
- Fairfax · 4 km
- Fair Oaks · 5 km
- Wolf Trap · 6 km
- Merrifield · 6 km
- Tysons · 7 km
- Reston · 8 km
- Kings Park West · 8 km
Frost dates recorded at VIENNA, 1 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 Oakton, VA — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00448737. Retrieved from https://blissgarden.com/virginia/oakton.