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.

The first opportunity to plant torenia in Presque Isle should be figured out by using the USDA zone info.

Planting Calendar for Torenia

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

Torenia are not cold tolerant which means that you must 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 Presque Isle is May. However, you really should wait until June 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. You probably don't want to wait any later than that or else your torenia may not have a chance to grow to maturity. Starting your torenia indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Presque Isle. In the coldest months of winter you should expect an average low temperature of -30°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Presque Isle and it can change quite a bit from year to year. Since half of the time in Presque Isle last frost occurs after May 15 be ready to protect your torenia in the event of a late frost.

USDA Zone Info for Presque Isle

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Presque Isle

You may be interested in your other planting guides for Presque Isle.