One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to determine when it's the best time to plant copperleaf by looking at the USDA zone info for Mount Vernon.

Planting Calendar for Copperleaf

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

Copperleaf are not cold tolerant which means that you really should wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant copperleaf in Mount Vernon 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. If you wait any later than that and your copperleaf may not have a chance to grow to maturity. You can get started a little bit earlier by starting your copperleaf indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Mount Vernon. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Mount Vernon may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Mount Vernon there is a last frost after April 15 be ready to protect your copperleaf if you have a late frost.

USDA Zone Info for Mount Vernon

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 Mount Vernon

You may be interested in your other planting guides for Mount Vernon.