When to Plant Caladium in Mount Horeb, WI

Before planting it is a good idea to find your USDA Zone info to determine 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.

A way of figuring out when it's a good idea to plant caladium is to check out the USDA zone info for Mount Horeb.


Planting Calendar for Caladium

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

Since caladium do not do well in cold weather it's necessary to wait until after the last frost before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant caladium
Possibly ok, but a risky time to plant caladium
Probably not a good time to plant caladium

The earliest that you can plant caladium in Mount Horeb 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. If you wait any later than that and your caladium may not have a chance to fully mature. 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 April 15 in Mount Horeb. You can expect an average low temperature of -20°F in the coldest months of winter.

It's important to remember that USDA zone info for Mount Horeb is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Mount Horeb last frost occurs after April 15 be ready to cover your caladium in the event of a surprise late frost.

USDA Zone Info for Mount Horeb

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

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

Plants to Grow in Mount Horeb

You may be interested in your other planting guides for Mount Horeb.