When to plant in Petersburg, VA
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Petersburg, Virginia — is derived from the closest NOAA station with complete climate normals.
In zone 7b, Petersburg supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
PETERSBURG · 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 Petersburg’s own odds, recorded at PETERSBURG.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 4 | Apr 16 | Apr 1 | Oct 13 | Oct 26 | Nov 6 |
| 32°F | Apr 17 | Apr 3 | Mar 20 | Oct 21 | Nov 3 | Nov 18 |
| 28°F | Apr 5 | Mar 20 | Mar 5 | Nov 1 | Nov 16 | Dec 3 |
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 Petersburg, 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.
Petersburg planting FAQ
When is the last spring frost in Petersburg, VA?
Petersburg's average last spring frost falls near April 3 — 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 Petersburg, VA?
The first fall frost in Petersburg typically arrives around November 3 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Petersburg in?
Petersburg 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 Petersburg?
Petersburg has about 214 frost-free days — a long growing season — between the average last spring frost (April 3) and first fall frost (November 3).
When should I plant tomatoes in Petersburg?
For Petersburg, 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 Petersburg
An email when it’s time to start seeds, transplant, and sow — timed to Petersburg’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Colonial Heights · 6 km
- Hopewell · 13 km
- Chester · 17 km
- Meadowbrook · 26 km
- Rockwood · 33 km
- Brandermill · 34 km
- Manchester · 34 km
- Richmond · 37 km
Frost dates recorded at PETERSBURG, 4 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 Petersburg, VA — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00446656. Retrieved from https://blissgarden.com/virginia/petersburg.