One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for White Oak can be read to estimate when it's a good idea to plant canna.

Planting Calendar for Canna

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

It's not a good idea to plant canna until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant canna in White Oak 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 grow to maturity. You can get started a few weeks earlier by starting your canna indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in White Oak. In the coldest months of winter you can expect an average low temperature of 10°F.

Remember that USDA zone info for White Oak may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in White Oak you get a frost after March 15 so make sure that you are prepared to protect your canna in the event of a late frost.

USDA Zone Info for White Oak

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in White Oak

You may be interested in your other planting guides for White Oak.