Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Viroqua you can estimate when it's possible to plant caladium by reviewing 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 do not do well in cold weather it's necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant caladium in Viroqua 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 really do well. If you are starting your caladium indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Viroqua. You should expect an average low temperature of -25°F in the coldest months of winter.

Keep in mind that USDA zone info for Viroqua is just an average and the actual date of last frost will vary from year to year. Since half of the time in Viroqua you get a frost after May 15 be ready to protect your caladium if you have a surprise late frost.

USDA Zone Info for Viroqua

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 Viroqua

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