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 USDA zone info for Green Bay should be looked at to determine when it's possible to plant torenia.

Planting Calendar for Torenia

Frost tolerance for torenia:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Torenia are not cold tolerant which means that it is necessary 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 torenia in Green Bay 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 torenia and expect a good harvest is probably August. If you wait any later than that and your torenia may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your torenia indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Green Bay. In the coldest months of winter you can expect an average low temperature of -20°F.

Keep in mind that USDA zone info for Green Bay is just an average and the actual date of last frost will vary from year to year. Half of the time in Green Bay you get surprised by a frost after April 15 so make sure that you are ready to cover your torenia if you have a surprise late frost.

USDA Zone Info for Green Bay

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 Green Bay

You may be interested in your other planting guides for Green Bay.