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

The best time to plant blue lace flowers in Wausau can be figured out by reviewing the USDA zone info.

Planting Calendar for Blue Lace Flowers

Frost tolerance for blue lace flowers:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Blue Lace Flowers tend to make it in some cold which means that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant blue lace flowers in Wausau 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 blue lace flowers and expect a good harvest is probably August. You probably don't want to wait any later than that or else your blue lace flowers may not have a chance to really do well. Starting your blue lace flowers indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Wausau. You can expect an average low temperature of -25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Wausau is just an average and the actual date of last frost changes from year to year. Half of the time in Wausau you get surprised by a frost after May 15 so just be sure to be ready to protect your blue lace flowers if you have a late frost.

USDA Zone Info for Wausau

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Wausau

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