The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Grand Forks you can estimate when it's possible to plant caladium by checking out the USDA zone info.

Planting Calendar for Caladium

Frost tolerance for caladium:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since caladium require warm weather you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant caladium in Grand Forks 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. If you wait any later than that and 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 couple of weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Grand Forks. In the coldest months of winter you should expect an average low temperature of -30°F.

Keep in mind that USDA zone info for Grand Forks may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Grand Forks you get a frost after May 15 so just be sure to be ready to protect your caladium if you have one of those late frosts.

USDA Zone Info for Grand Forks

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Grand Forks

You may be interested in your other planting guides for Grand Forks.