The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when to plant copperleaf in Rancho Cucamonga by looking at 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.

It's a bad idea to plant copperleaf until after the last frost because they are not cold tolerant.

The earliest that you can plant copperleaf in Rancho Cucamonga 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 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 February 15 in Rancho Cucamonga. You should expect an average low temperature of 25°F in the coldest months of winter.

It's important to remember that USDA zone info for Rancho Cucamonga is not always accurate and the actual date of last frost is different every year. Since half of the time in Rancho Cucamonga last frost occurs after February 15 be ready to cover your copperleaf in the event of a late frost.

USDA Zone Info for Rancho Cucamonga

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 Rancho Cucamonga

You may be interested in your other planting guides for Rancho Cucamonga.