Planting Calendar for Philadelphia, PA

On average, your last spring frost occurs on April 3 (at PHILADELPHIA CITY, PA climate station).
Crop Based on Frost Dates   Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
BeansN/AN/A Apr 10-May 1
Apr 10-19
BeetsN/AN/A Mar 20-Apr 10
Mar 21-Apr 4
Bell Peppers Jan 22-Feb 5
Feb 4- 5
Apr 17-May 8
Apr 17-19, May 4- 8
N/A
Broccoli Feb 19-Mar 5
Feb 19
Mar 13-Apr 3
Mar 13-20
N/A
Brussels Sprouts Feb 19-Mar 5
Feb 19
Mar 5-27
Mar 6-20
N/A
Cabbage Feb 5-19
Feb 5-19
Mar 5-20
Mar 6-20
N/A
Cantaloupes Mar 5-13
Mar 6-13
Apr 17-May 8
Apr 17-19, May 4- 8
N/A
CarrotsN/AN/A Feb 26-Mar 13
Feb 26-Mar 5
Cauliflower Feb 19-Mar 5
Feb 19
Mar 5-20
Mar 6-20
N/A
Celery Jan 22-Feb 5
Feb 4- 5
Apr 10-24
Apr 10-19
N/A
Collards Feb 19-Mar 5
Feb 19
Mar 5-27
Mar 6-20
N/A
CornN/AN/A Apr 3-17
Apr 5-17
Cucumbers Mar 5-13
Mar 6-13
Apr 17-May 8
Apr 17-19, May 4- 8
N/A
Eggplants Jan 22-Feb 5
Feb 4- 5
Apr 17-May 8
Apr 17-19, May 4- 8
N/A
Lettuce Feb 19-Mar 5
Feb 19
Mar 20-Apr 17
Mar 20, Apr 5-17
N/A
KohlrabiN/AN/A Mar 5-27
Mar 6-20
Leeks Jan 22-Feb 5
Feb 4- 5
Mar 5-27
Mar 6-20
N/A
OkraN/AN/A Apr 17-May 1
Apr 17-19
OnionsN/AN/A Mar 5-27
Mar 5, Mar 21-27
ParsnipsN/AN/A Mar 13-Apr 3
Mar 21-Apr 3
PeasN/AN/A Feb 19-Mar 13
Feb 19, Mar 6-13
PotatoesN/AN/A Mar 27-Apr 17
Mar 27-Apr 4
Pumpkins Mar 5-20
Mar 6-20
Apr 17-May 8
Apr 17-19, May 4- 8
N/A
RadishesN/AN/A Feb 5-26
Feb 20-26
SpinachN/AN/A Feb 19-Mar 13
Feb 19, Mar 6-13
Squash (Zucchini) Mar 5-20
Mar 6-20
Apr 17-May 8
Apr 17-19, May 4- 8
N/A
Sweet Potatoes Mar 5-13
Mar 5
Apr 17-May 8
Apr 20-May 3
N/A
Swiss Chard Feb 19-Mar 5
Feb 19
Mar 13-20
Mar 13-20
N/A
Tomatoes Feb 5-19
Feb 5-19
Apr 10-May 1
Apr 10-19
N/A
TurnipsN/AN/A Mar 5-27
Mar 5, Mar 21-27
Watermelons Mar 5-13
Mar 6-13
Apr 17-May 8
Apr 17-19, May 4- 8
N/A

Find the best dates for planting vegetables and fruit in your garden! Our free planting calendar calculates the best time to start seeds indoors and outdoors, as well as when to plant young plants outside.

How to Use the Planting Calendar

Simply put, a planting calendar is a guide that tells you the best time to start planting your garden. Most planting calendars are based on frost dates, which dictate when you should start seeds and when it's safe to plant outdoors in your area. Our planting calendar is customized to your location in order to give you the most accurate information possible.

On the planting calendar below, please note:

  • The Frost Dates indicate the best planting dates based on your local average frost dates. Average frost dates are based on historical weather data and are the planting guideline used by most gardeners.
  • The Moon Dates indicate the best planting dates based on your local frost dates and Moon phases. Planting by the Moon is considered a more traditional technique.
  • The Plant Seedlings or Transplants dates indicate the best time to plant young plants outdoors. This includes plants grown from seed at home and plants bought from a nursery. Although frost dates are a good way to know approximately when to start gardening, always check a local forecast before planting outdoors!
  • When no dates appear in the chart, that starting method is not recommended for that particular plant. Some crops do best when started outdoors rather than indoors, while others prefer the opposite.
  • Click on the name of a plant to see our corresponding Growing Guide.

To plan your garden more accurately in the future, keep a record of your garden's conditions each year, including frost dates and seed-starting dates!