One of the best tools that you have as gardeners to help us estimate 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.

You should be able to estimate when it's a good idea to plant canna by using the USDA zone info for Whitehouse.

Planting Calendar for Canna

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

Since canna do not do well in cold weather you must wait until after the last frost has passed before you can plant them.

The earliest that you can plant canna in Whitehouse 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. If you are starting your canna indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Whitehouse is not always accurate the actual date of last frost will vary from year to year. Half of the time in Whitehouse last frost occurs after March 15 so always be ready to cover your canna in the event of a late frost.

USDA Zone Info for Whitehouse

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Whitehouse

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