Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when to plant canna in Suwanee by looking at the USDA zone info.

Planting Calendar for Canna

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

You really shouldn't plant canna until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant canna in Suwanee 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 grow to maturity. You can get started a little bit earlier by starting your canna indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Suwanee. You should expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Suwanee is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Suwanee you get surprised by a frost after April 15 so always be ready to protect your canna in the event of a late frost.

USDA Zone Info for Suwanee

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Suwanee

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