One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to figure out when you can plant canna by looking at the USDA zone info for Lockhart.

Planting Calendar for Canna

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

It's a bad 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 Lockhart 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 really do well. You can get started a couple of weeks earlier by starting your canna indoors.

Last Frost Date

On average the last frost has passed is on March 15 in Lockhart. It might get as low as 15°F during the coldest months of winter.

It's important to remember that USDA zone info for Lockhart is an average and the actual date of last frost changes from year to year. Since half of the time in Lockhart there is a last frost after March 15 be ready to cover your canna if you have a surprise late frost.

USDA Zone Info for Lockhart

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 Lockhart

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