When to plant in Manassas Park, VA
USDA Zone 7aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Manassas Park, Virginia — all computed from Manassas Park's nearest NOAA weather station.
Zone 7a means many perennials and even some tender shrubs overwinter in Manassas Park, while your frost dates still decide when annuals go out.
Frost probability
MANASSAS · 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 Manassas Park’s own odds, recorded at MANASSAS.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 10 | Apr 24 | Apr 11 | Oct 6 | Oct 18 | Oct 30 |
| 32°F | Apr 24 | Apr 12 | Mar 30 | Oct 13 | Oct 27 | Nov 7 |
| 28°F | Apr 14 | Apr 1 | Mar 17 | Oct 24 | Nov 5 | Nov 19 |
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 Manassas Park, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 19 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.
Manassas Park planting FAQ
When is the last spring frost in Manassas Park, VA?
Plan for the last spring frost in Manassas Park around April 12 (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 Manassas Park, VA?
In Manassas Park, the first 32°F freeze of fall lands around October 27 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Manassas Park in?
Manassas Park 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 Manassas Park?
There are roughly 198 frost-free days in Manassas Park (a moderate growing season), running from the average last frost around April 12 to the first fall frost near October 27.
When should I plant tomatoes in Manassas Park?
In Manassas Park, start tomato seeds indoors around February 15–March 1, then transplant seedlings outdoors around April 19 once the danger of frost has passed.
Never miss a window in Manassas Park
An email when it’s time to start seeds, transplant, and sow — timed to Manassas Park’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Manassas · 4 km
- Sudley · 5 km
- Buckhall · 6 km
- Bull Run · 7 km
- Centreville · 8 km
- Fairfax Station · 9 km
- Linton Hall · 12 km
- Burke Centre · 13 km
Frost dates recorded at MANASSAS, 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 Manassas Park, VA — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00445204. Retrieved from https://blissgarden.com/virginia/manassas-park.