When to plant in Broomall, PA
USDA Zone 7bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Broomall, Pennsylvania — all computed from Broomall's nearest NOAA weather station.
Heads up: the nearest complete-normals station is about 15 km from Broomall, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. Zone 7b means many perennials and even some tender shrubs overwinter in Broomall, while your frost dates still decide when annuals go out.
Frost probability
PHILADELPHIA INTL 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 Broomall’s own odds, recorded at PHILADELPHIA INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 28 | Apr 13 | Apr 1 | Oct 18 | Oct 31 | Nov 12 |
| 32°F | Apr 13 | Apr 2 | Mar 19 | Oct 30 | Nov 10 | Nov 24 |
| 28°F | Apr 3 | Mar 22 | Mar 7 | Nov 7 | Nov 23 | 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 Broomall, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 16 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.
Broomall planting FAQ
When is the last spring frost in Broomall, PA?
Broomall's average last spring frost falls near April 2 — 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 Broomall, PA?
The first fall frost in Broomall typically arrives around November 10 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Broomall in?
Broomall 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 Broomall?
There are roughly 222 frost-free days in Broomall (a long growing season), running from the average last frost around April 2 to the first fall frost near November 10.
When should I plant tomatoes in Broomall?
In Broomall, start tomato seeds indoors around February 5–February 19, then transplant seedlings outdoors around April 9 once the danger of frost has passed.
Never miss a window in Broomall
An email when it’s time to start seeds, transplant, and sow — timed to Broomall’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Drexel Hill · 5 km
- Ardmore · 6 km
- Lansdowne · 7 km
- Yeadon · 10 km
- Darby · 10 km
- Bala Cynwyd · 12 km
- Chester · 14 km
- King of Prussia · 14 km
Frost dates recorded at PHILADELPHIA INTL AP, 15 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 Broomall, PA — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00013739. Retrieved from https://blissgarden.com/pennsylvania/broomall.