Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of estimating when it's a good idea to plant violas is to check out the USDA zone info for Red Lion.

Planting Calendar for Violas

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

Since violas are very cold tolerant you can plant them earlier in the year than other plants that might not handle the cold.

The earliest that you can plant violas in Red Lion 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. You probably don't want to wait any later than that or else your violas may not have a chance to really do well. You can get started a little bit earlier by starting your violas indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Red Lion. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Red Lion is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Red Lion it frosts late in the year after April 15 so be sure to be ready to cover your violas in the event of a surprise late frost.

USDA Zone Info for Red Lion

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 Red Lion

You may be interested in your other planting guides for Red Lion.