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

One way of estimating when it's a good idea to plant violas is to examine the USDA zone info for Torrance.

Planting Calendar for Violas

Frost tolerance for violas:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Violas do well in cold which means that you can plant them much earlier than plants that are more sensitive to the cold.

The earliest that you can plant violas in Torrance is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant violas and expect a good harvest is probably October. You probably don't want to wait any later than that or else your violas may not have a chance to fully mature. Starting your violas indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on January 31 in Torrance. It might get as low as 35°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Torrance is just an average and the actual date of last frost is different every year. Since half of the time in Torrance there is a last frost after January 31 be ready to cover your violas in the event of a surprise late frost.

USDA Zone Info for Torrance

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Torrance

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