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.

The earliest that you can plant torenia in Scottdale can be estimated by looking at the USDA zone info.

Planting Calendar for Torenia

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

You really shouldn't plant torenia until after the last frost has passed because they require warm weather.

The earliest that you can plant torenia in Scottdale 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. 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

The average date of last frost is April 15 in Scottdale. It might get as low as -10°F during the coldest months of winter.

Always keep in mind that USDA zone info for Scottdale is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Scottdale last frost occurs after April 15 so be sure to be ready to cover your torenia if you have a surprise late frost.

USDA Zone Info for Scottdale

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 Scottdale

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