The USDA Zone info is a great tool for gardeners to help us estimate 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.

It's a good idea to estimate when it's possible to plant copperleaf by looking at the USDA zone info for Campbell.

Planting Calendar for Copperleaf

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

Since copperleaf require warm weather it's necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant copperleaf in Campbell 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 fully mature. You can get started a few weeks earlier by starting your copperleaf indoors.

Last Frost Date

In Campbell the average date of last frost happens on April 15. It might get as low as -10°F during the coldest months of winter.

Remember that USDA zone info for Campbell is not always accurate and the actual date of last frost is different every year. Since half of the time in Campbell last frost occurs after April 15 be ready to protect your copperleaf if you have a late frost.

USDA Zone Info for Campbell

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 Campbell

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