The USDA Zone info is a great tool for gardeners to help us estimate 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.

A common way of making a decision about when you can plant lantana is to look at the USDA zone info for Janesville.

Planting Calendar for Lantana

Frost tolerance for lantana:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's probably a bad idea to plant lantana until after the last frost because they do not do well in cold weather.

The earliest that you can plant lantana in Janesville 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 lantana and expect a good harvest is probably August. You probably don't want to wait any later than that or else your lantana may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your lantana indoors.

Last Frost Date

The average date of last frost is April 15 in Janesville. You can expect an average low temperature of -20°F in the coldest months of winter.

Keep in mind that USDA zone info for Janesville may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Janesville last frost occurs after April 15 so always be ready to cover your lantana in the event of one of those late frosts.

USDA Zone Info for Janesville

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Janesville

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