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.

By reviewing the USDA zone info for Waukesha you will be able to figure out when it's possible to plant veronica.

Planting Calendar for Veronica

Frost tolerance for veronica:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant veronica a little earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant veronica in Waukesha is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant veronica and expect a good harvest is probably September. Any later than that and your veronica may not have a chance to grow to maturity. If you are starting your veronica 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 April 15 in Waukesha. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Waukesha is just an average the actual date of last frost is different every year. Since half of the time in Waukesha last frost occurs after April 15 be ready to protect your veronica in the event of one of those late frosts.

USDA Zone Info for Waukesha

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 Waukesha

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