One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Chippewa Falls you can figure out when to plant four o' clock by referring to the USDA zone info.

Planting Calendar for Four O' Clock

Frost tolerance for four o' clock:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably not a good idea to plant four o' clock until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant four o' clock in Chippewa Falls 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 grow to maturity. You can get started a couple of weeks earlier by starting your four o' clock indoors.

Last Frost Date

In Chippewa Falls the average date of last frost happens on May 15. It might get as low as -30°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Chippewa Falls is an average and the actual date of last frost changes from year to year. Since half of the time in Chippewa Falls it frosts late in the year after May 15 be ready to cover your four o' clock if you have a late frost.

USDA Zone Info for Chippewa Falls

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 Chippewa Falls

You may be interested in your other planting guides for Chippewa Falls.