When to Plant Canna in Charleston, IL

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of getting a good idea when it's possible to plant canna is to use the USDA zone info for Charleston.

Create beautiful hand-made plants at forever-plants.com

Planting Calendar for Canna

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

Canna do not do well in cold weather which means that you need to wait until it warms up after the last frost before you can plant them.

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

The earliest that you can plant canna in Charleston 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 canna and expect a good harvest is probably August. Any later than that and your canna may not have a chance to really do well. Starting your canna indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Charleston. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Charleston is an average the actual date of last frost will vary from year to year. Half of the time in Charleston you get a frost after April 15 so just be sure to be ready to cover your canna if you have a surprise late frost.

USDA Zone Info for Charleston

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 Charleston

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