When to Plant Copperleaf in New Castle, PA

One of the first steps you take when you are determining 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.

In New Castle you can estimate when it's possible to plant copperleaf by checking out the USDA zone info.


Planting Calendar for Copperleaf

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

Copperleaf are not cold tolerant which means that you really should wait until it warms up after the last frost before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant copperleaf
Possibly ok, but a risky time to plant copperleaf
Probably not a good time to plant copperleaf

The earliest that you can plant copperleaf in New Castle 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. Any later than that and your copperleaf may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your copperleaf indoors.

Last Frost Date

On average the last frost has passed is on April 15 in New Castle. You can expect an average low temperature of -10°F in the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for New Castle and it will vary from year to year. Since half of the time in New Castle you get a frost after April 15 be ready to cover your copperleaf if you have one of those late frosts.

USDA Zone Info for New Castle

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°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 -5°F.

Plants to Grow in New Castle

You may be interested in your other planting guides for New Castle.