When to Plant Canna in Benton, KY

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

The first opportunity to plant canna in Benton can be figured out by reviewing the USDA zone info.


Planting Calendar for Canna

Frost tolerance for canna: Not tolerant of frost.
When to plant: After the last frost.

Since canna require warm weather you have to wait until after the last frost has passed 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 Benton 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. If you wait any later than that and your canna may not have a chance to fully mature. Starting your canna indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Benton. In the coldest months of winter you can expect an average low temperature of 0°F.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Benton and it changes from year to year. Half of the time in Benton you get surprised by a frost after April 15 so make sure that you are ready to cover your canna in the event of a surprise late frost.

USDA Zone Info for Benton

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Benton

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