The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Holbrook you can estimate when it's the best time to plant torenia by reviewing the USDA zone info.

Planting Calendar for Torenia

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

Torenia do not do well in cold weather which means that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant torenia in Holbrook 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 few weeks earlier by starting your torenia indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Holbrook. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Holbrook is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Holbrook last frost occurs after April 15 be ready to cover your torenia if you have a late frost.

USDA Zone Info for Holbrook

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Holbrook

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