One of the first steps you take when you are making a decision about 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 determining when it's possible to plant violets is to use the USDA zone info for Oak Ridge.

Planting Calendar for Violets

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

Violets are moderately cold tolerant which tells us that you can get them planted earlier than more sensitive plants.

The earliest that you can plant violets in Oak Ridge is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant violets and expect a good harvest is probably September. You probably don't want to wait any later than that or else 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

The average date of last frost is April 15 in Oak Ridge. In the coldest months of winter you can expect an average low temperature of 0°F.

Since the USDA zone info for Oak Ridge is just an average the actual date of last frost changes from year to year. Since half of the time in Oak Ridge you get surprised by a frost after April 15 be ready to cover your violets in the event of a late frost.

USDA Zone Info for Oak Ridge

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Oak Ridge

You may be interested in your other planting guides for Oak Ridge.