The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of making a decision about when you can plant copperleaf is to use the USDA zone info for Porterville.

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 it's important to wait until it warms up after the last frost before you can plant them.

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

The last month that you can plant copperleaf and expect a good harvest is probably September. 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 all chance of frost has passed is on February 15 in Porterville. You can expect an average low temperature of 25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Porterville is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Porterville there is a last frost after February 15 be ready to cover your copperleaf if you have one of those late frosts.

USDA Zone Info for Porterville

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Porterville

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