Before planting it is a good idea to find your USDA Zone info to estimate your garden 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 Shelby can be looked at to determine when to plant torenia.

Planting Calendar for Torenia

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

Since torenia require warm weather it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant torenia in Shelby 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. You probably don't want to wait any later than that or else your torenia may not have a chance to fully mature. If you are starting your torenia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Shelby. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Shelby is not always accurate the actual date of last frost is different every year. Half of the time in Shelby you get surprised by a frost after April 15 so just be sure to be ready to cover your torenia in the event of one of those late frosts.

USDA Zone Info for Shelby

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Shelby

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