Growing in Philadelphia
- USDA zone (2023)
- 7b
- Median last frost
- April 5
- Median first frost
- November 5
- Growing season
- ~214 days
Frost dates are medians from NOAA climate normals: in half of years, frost comes later. The windows below are computed from each crop's planting rules against this city's dates, treat them as the center of the target, not the edges.
Tomato in Philadelphia
| Step | Window | Notes |
|---|---|---|
| Start seed indoors | February 8 to February 22 | |
| Transplant out | April 5 to April 26 | soil ≥ 60°F |
→ Full tomato calendar & suitable varieties for Philadelphia
Pepper in Philadelphia
| Step | Window | Notes |
|---|---|---|
| Start seed indoors | January 25 to February 8 | |
| Transplant out | April 12 to May 3 | soil ≥ 65°F |
→ Full pepper calendar & suitable varieties for Philadelphia
Other crops with rules for this climate
Data sources
Evidence: 2 sources, all independent references.
- USDA Plant Hardiness Zone Map (2023) · USDA Agricultural Research Service / Oregon State PRISM (2023), University or Government
- U.S. Climate Normals (1991-2020) · NOAA National Centers for Environmental Information (2021), University or Government