One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant caladium in Collinsville should be estimated by referring to the USDA zone info.

Planting Calendar for Caladium

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

Since caladium are not cold tolerant it's important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant caladium in Collinsville 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 caladium and expect a good harvest is probably August. Any later than that and 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 is on April 15 in Collinsville. You can expect an average low temperature of 0°F in the coldest months of winter.

Keep in mind that USDA zone info for Collinsville 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 Collinsville last frost occurs after April 15 so make sure that you are ready to cover your caladium in the event of a surprise late frost.

USDA Zone Info for Collinsville

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Collinsville

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