One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when to plant violets is to look at the USDA zone info for Patterson.

Planting Calendar for Violets

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

Violets do ok in some cold which tells us that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant violets in Patterson 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. If you wait any later than that and your violets may not have a chance to grow to maturity. Starting your violets indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Patterson. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Patterson may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Patterson it frosts late in the year after February 15 be ready to cover your violets if you have one of those late frosts.

USDA Zone Info for Patterson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Patterson

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