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.

The USDA zone info for Austin can be read to determine when to plant caladium.

Planting Calendar for Caladium

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

Caladium are not cold tolerant which tells us that you must wait until it warms up after the last frost before you can plant them.

The earliest that you can plant caladium in Austin is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant caladium and expect a good harvest is probably August. You probably don't want to wait any later than that or else your caladium may not have a chance to grow to maturity. You can get started a little bit earlier by starting your caladium indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Austin. In the coldest months of winter you should expect an average low temperature of -25°F.

It's important to remember that USDA zone info for Austin 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 Austin you get a frost after May 15 so be sure to be ready to protect your caladium in the event of a surprise late frost.

USDA Zone Info for Austin

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Austin

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