One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to estimate when to plant aegopodium by checking out the USDA zone info for Philadelphia.

Planting Calendar for Aegopodium

Frost tolerance for aegopodium:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since aegopodium are very cold tolerant you can plant them earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant aegopodium in Philadelphia is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant aegopodium and expect a good harvest is probably September. If you wait any later than that and your aegopodium may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your aegopodium indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Philadelphia. In the coldest months of winter you can expect an average low temperature of 10°F.

Keep in mind that USDA zone info for Philadelphia is just an average and the actual date of last frost will vary from year to year. Half of the time in Philadelphia you get a frost after March 15 so make sure that you are ready to cover your aegopodium if you have a surprise late frost.

USDA Zone Info for Philadelphia

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Philadelphia

You may be interested in your other planting guides for Philadelphia.