Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Vienna you can figure out when it's possible to plant violas by looking at the USDA zone info.

Planting Calendar for Violas

Frost tolerance for violas:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant violas quite a bit earlier in the year because they are very cold tolerant.

The earliest that you can plant violas in Vienna 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 violas and expect a good harvest is probably September. If you wait any later than that and your violas may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your violas indoors.

Last Frost Date

On average the last frost is on April 15 in Vienna. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Vienna may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Vienna last frost occurs after April 15 so just be sure to be ready to protect your violas in the event of a late frost.

USDA Zone Info for Vienna

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 Vienna

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