Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Philadelphia you can determine when it's possible to plant copperleaf by referring to the USDA zone info.

Planting Calendar for Copperleaf

Frost tolerance for copperleaf:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Copperleaf require warm weather which means that it's necessary to wait until it warms up after the last frost has passed before you can plant them.

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

The last month that you can plant copperleaf and expect a good harvest is probably August. You probably don't want to wait any later than that or else your copperleaf may not have a chance to really do well. You can get started a couple of weeks earlier by starting your copperleaf indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Philadelphia. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Philadelphia may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Philadelphia you get surprised by a frost after March 15 so be sure to be ready to protect your copperleaf if you have one of those late frosts.

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.