The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Rice Lake you can figure out when you can plant four o' clock by using the USDA zone info.

Planting Calendar for Four O' Clock

Frost tolerance for four o' clock:	Not tolerant of frost.
When to plant:	After the last frost.

Four O' Clock require warm weather 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 four o' clock in Rice Lake 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 four o' clock and expect a good harvest is probably August. You probably don't want to wait any later than that or else your four o' clock may not have a chance to really do well. You can get started a little bit earlier by starting your four o' clock indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Rice Lake is just an average and the actual date of last frost changes from year to year. Half of the time in Rice Lake there is a last frost after May 15 so be sure to be ready to cover your four o' clock in the event of a late frost.

USDA Zone Info for Rice Lake

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 Rice Lake

You may be interested in your other planting guides for Rice Lake.