One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of estimating when it's possible to plant torenia is to refer to the USDA zone info for Archbald.

Planting Calendar for Torenia

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

Since torenia do not do well in cold weather it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant torenia in Archbald 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. Starting your torenia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Archbald. You can expect an average low temperature of -10°F in the coldest months of winter.

Keep in mind that USDA zone info for Archbald 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 Archbald you get surprised by a frost after April 15 so make sure that you are ready to cover your torenia if you have a late frost.

USDA Zone Info for Archbald

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 Archbald

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