One of the first steps you take when you are determining your gardening schedule is find your 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.

In Santa Clara you can figure out when it's possible to plant violets by referring to the USDA zone info.

Planting Calendar for Violets

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

You can plant violets a little earlier in the year because they do well in moderate cold.

The earliest that you can plant violets in Santa Clara 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 grow to maturity. You can get started a few weeks earlier by starting your violets indoors.

Last Frost Date

On average the last frost is on February 15 in Santa Clara. You should expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Santa Clara may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Santa Clara you get a frost after February 15 so just be sure to be ready to protect your violets if you have a surprise late frost.

USDA Zone Info for Santa Clara

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 Santa Clara

You may be interested in your other planting guides for Santa Clara.