One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to determine when it's possible to plant torenia by checking out the USDA zone info for Stockton.

Planting Calendar for Torenia

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

It's a bad idea to plant torenia until after the last frost because they do not do well in cold weather.

The earliest that you can plant torenia in Stockton is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant torenia and expect a good harvest is probably September. Any later than that and your torenia may not have a chance to fully mature. You can get started a few weeks earlier by starting your torenia indoors.

Last Frost Date

The average date of last frost is February 15 in Stockton. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Stockton is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Stockton you get a frost after February 15 be ready to protect your torenia in the event of one of those late frosts.

USDA Zone Info for Stockton

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Stockton

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