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

By using the USDA zone info for Bethlehem it's a good idea 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.

It's not a good idea to plant torenia until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant torenia in Bethlehem 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 little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Bethlehem. In the coldest months of winter you can expect an average low temperature of -5°F.

Remember that USDA zone info for Bethlehem is just an average and the actual date of last frost changes from year to year. Half of the time in Bethlehem you get a frost after April 15 so make sure that you are prepared to protect your torenia in the event of one of those late frosts.

USDA Zone Info for Bethlehem

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Bethlehem

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