When to plant in Pennsville, NJ
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Pennsville, New Jersey — is derived from the closest NOAA station with complete climate normals.
Zone 7b means many perennials and even some tender shrubs overwinter in Pennsville, while your frost dates still decide when annuals go out.
Frost probability
WILMINGTON NEW CASTLE CO AP · 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 Pennsville’s own odds, recorded at WILMINGTON NEW CASTLE CO AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 7 | Apr 21 | Apr 7 | Oct 8 | Oct 22 | Nov 3 |
| 32°F | Apr 21 | Apr 7 | Mar 26 | Oct 19 | Nov 1 | Nov 15 |
| 28°F | Apr 9 | Mar 27 | Mar 11 | Nov 1 | Nov 14 | Dec 1 |
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 Pennsville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 21 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.
Pennsville planting FAQ
When is the last spring frost in Pennsville, NJ?
On average, the last spring frost in Pennsville is around April 7 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Pennsville, NJ?
In Pennsville, the first 32°F freeze of fall lands around November 1 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Pennsville in?
Pennsville 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 Pennsville?
There are roughly 208 frost-free days in Pennsville (a moderate growing season), running from the average last frost around April 7 to the first fall frost near November 1.
When should I plant tomatoes in Pennsville?
In Pennsville, start tomato seeds indoors around February 10–February 24, then transplant seedlings outdoors around April 14 once the danger of frost has passed.
Never miss a window in Pennsville
An email when it’s time to start seeds, transplant, and sow — timed to Pennsville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Wilmington · 10 km
- Bear · 16 km
- Brookside · 18 km
- Pike Creek Valley · 19 km
- Hockessin · 22 km
- Glasgow · 22 km
- Newark · 22 km
- Chester · 25 km
Frost dates recorded at WILMINGTON NEW CASTLE CO AP, 9 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 Pennsville, NJ — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00013781. Retrieved from https://blissgarden.com/new-jersey/pennsville.