The USDA Zone info is a great tool for gardeners to help us determine 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.

A common way of estimating when it's a good idea to plant violets is to examine the USDA zone info for Carnegie.

Planting Calendar for Violets

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

You can plant violets a little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant violets in Carnegie 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 few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Carnegie. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Carnegie is just an average the actual date of last frost is different every year. Since half of the time in Carnegie you get surprised by a frost after April 15 be ready to protect your violets if you have a late frost.

USDA Zone Info for Carnegie

Here is the info for USDA Zone 6b.

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

Plants to Grow in Carnegie

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