One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Ione it's a good idea to estimate when it's the best time to plant copperleaf.

Planting Calendar for Copperleaf

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

Copperleaf do not do well in cold weather which means that you really should wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant copperleaf in Ione 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. If you wait any later than that and your copperleaf may not have a chance to fully mature. Starting your copperleaf indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Ione. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Ione is an average the actual date of last frost is different every year. Half of the time in Ione last frost occurs after February 15 so make sure that you are prepared to protect your copperleaf if you have a surprise late frost.

USDA Zone Info for Ione

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 Ione

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