When to plant in Mount Vernon, VA
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Mount Vernon, Virginia — is derived from the closest NOAA station with complete climate normals.
In zone 7b, Mount Vernon supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
OXON HILL · 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 Mount Vernon’s own odds, recorded at OXON HILL.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 2 | Apr 15 | Apr 1 | Oct 14 | Oct 27 | Nov 10 |
| 32°F | Apr 15 | Apr 3 | Mar 19 | Oct 24 | Nov 8 | Nov 23 |
| 28°F | Apr 3 | Mar 21 | Mar 5 | Nov 5 | Nov 19 | Dec 8 |
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 Mount Vernon, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 25 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.
Mount Vernon planting FAQ
When is the last spring frost in Mount Vernon, VA?
Plan for the last spring frost in Mount Vernon around April 3 (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 Mount Vernon, VA?
Expect Mount Vernon's first fall frost near November 8 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Mount Vernon in?
Mount Vernon 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 Mount Vernon?
Mount Vernon has about 219 frost-free days — a long growing season — between the average last spring frost (April 3) and first fall frost (November 8).
When should I plant tomatoes in Mount Vernon?
For Mount Vernon, sow tomatoes indoors about February 6–February 20 and move the seedlings out around April 10, after the last spring frost.
Never miss a window in Mount Vernon
An email when it’s time to start seeds, transplant, and sow — timed to Mount Vernon’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Woodlawn · 2 km
- Groveton · 4 km
- Hybla Valley · 4 km
- Fort Hunt · 5 km
- Kingstowne · 6 km
- Franconia · 8 km
- Rose Hill · 8 km
- Newington · 8 km
Frost dates recorded at OXON HILL, 13 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 Mount Vernon, VA — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00186800. Retrieved from https://blissgarden.com/virginia/mount-vernon.