The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant violas in Shelby can be figured out by reviewing 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.

Violas do well in a bit of cold which means that you can plant them much earlier in the year than other plants that might not handle the cold.

The earliest that you can plant violas in Shelby 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 few weeks earlier by starting your violas indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Shelby. You should expect an average low temperature of 5°F in the coldest months of winter.

It's important to remember that USDA zone info for Shelby is just an average and the actual date of last frost is different every year. Since half of the time in Shelby it frosts late in the year after April 15 be ready to protect your violas if you have a surprise late frost.

USDA Zone Info for Shelby

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Shelby

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