One of the best tools that you have as gardeners to help us figure out 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.

By referring to the USDA zone info for Tustin it's a good idea to figure out when it's a good idea to plant violets.

Planting Calendar for Violets

Frost tolerance for violets:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Violets do well in some cold which means that you can plant them a little bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant violets in Tustin 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 violets and expect a good harvest is probably October. Any later than that and your violets may not have a chance to really do well. You can get started a few weeks earlier by starting your violets indoors.

Last Frost Date

The average date of last frost is January 31 in Tustin. It might get as low as 30°F during the coldest months of winter.

It's important to remember that USDA zone info for Tustin is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Tustin it frosts late in the year after January 31 be ready to cover your violets in the event of a late frost.

USDA Zone Info for Tustin

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Tustin

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