One of the best tools that you have as gardeners to help us estimate 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.

A way of getting a good idea when it's the best time to plant copperleaf is to check out the USDA zone info for Carol Stream.

Planting Calendar for Copperleaf

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

Copperleaf require warm weather which means that you need to 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 Carol Stream 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 really do well. Starting your copperleaf indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Carol Stream. You should expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Carol Stream is an average and the actual date of last frost will vary from year to year. Since half of the time in Carol Stream it frosts late in the year after April 15 be ready to cover your copperleaf if you have one of those late frosts.

USDA Zone Info for Carol Stream

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Carol Stream

You may be interested in your other planting guides for Carol Stream.