When to plant in Leesburg, VA
USDA Zone 7bLeesburg, Virginia frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 7b means many perennials and even some tender shrubs overwinter in Leesburg, while your frost dates still decide when annuals go out.
The average last spring frost in Leesburg is now 10 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
PURCELLVILLE · 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 Leesburg’s own odds, recorded at PURCELLVILLE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 20 | May 1 | Apr 14 | Sep 29 | Oct 12 | Oct 27 |
| 32°F | May 7 | Apr 16 | Mar 31 | Oct 7 | Oct 25 | Nov 7 |
| 28°F | Apr 17 | Apr 2 | Mar 20 | Oct 21 | Nov 5 | Nov 20 |
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 Leesburg, 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.
Leesburg planting FAQ
When is the last spring frost in Leesburg, VA?
Leesburg's average last spring frost falls near April 16 — 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 Leesburg, VA?
Expect Leesburg's first fall frost near October 25 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Leesburg in?
Leesburg 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 Leesburg?
There are roughly 192 frost-free days in Leesburg (a moderate growing season), running from the average last frost around April 16 to the first fall frost near October 25.
When should I plant tomatoes in Leesburg?
In Leesburg, start tomato seeds indoors around February 19–March 5, then transplant seedlings outdoors around April 23 once the danger of frost has passed.
Never miss a window in Leesburg
An email when it’s time to start seeds, transplant, and sow — timed to Leesburg’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Lansdowne · 7 km
- Broadlands · 11 km
- Ashburn · 12 km
- Brambleton · 14 km
- Loudoun Valley Estates · 15 km
- Cascades · 16 km
- Sterling · 17 km
- Sugarland Run · 19 km
Frost dates recorded at PURCELLVILLE, 14 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 Leesburg, VA — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00444909. Retrieved from https://blissgarden.com/virginia/leesburg.