When to Plant Copperleaf in Zone 1a

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.

The USDA zone info for Zone 1a should be looked at to estimate when it's possible 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.

You should not plant copperleaf until after the last frost when the weather gets warmer because they require warm weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant copperleaf
Possibly ok, but a risky time to plant copperleaf
Probably not a good time to plant copperleaf

The earliest that you can plant copperleaf in Zone 1a is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant copperleaf and expect a good harvest is probably July. If you wait any later than that and your copperleaf may not have a chance to really do well. If you are starting your copperleaf indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is June 15 in Zone 1a. In the coldest months of winter you can expect an average low temperature of -60°F.

Since the USDA zone info for Zone 1a is not always accurate the actual date of last frost is different every year. Half of the time in Zone 1a it frosts late in the year after June 15 so make sure that you are ready to protect your copperleaf if you have a surprise late frost.

USDA Zone Info for Zone 1a

Here is the info for USDA Zone 1a.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-60°F
Highest Expected Low-55°F

This means that on a really cold year, the coldest it will get is -60°F. On most years you should be prepared to experience lows near -55°F.

Plants to Grow in Zone 1a

You may be interested in your other planting guides for Zone 1a.