Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to determine when it's possible to plant evolvulus by reviewing the USDA zone info for Milwaukee.

Planting Calendar for Evolvulus

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

Evolvulus are not cold tolerant which tells us that it's important to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant evolvulus in Milwaukee 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 evolvulus and expect a good harvest is probably August. Any later than that and your evolvulus may not have a chance to fully mature. Starting your evolvulus indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Milwaukee the average date of last frost happens on April 15. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Milwaukee is just an average the actual date of last frost changes from year to year. Half of the time in Milwaukee last frost occurs after April 15 so be sure to be ready to cover your evolvulus if you have one of those late frosts.

USDA Zone Info for Milwaukee

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Milwaukee

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