One of the first steps you take when you are getting a good idea 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 getting a good idea when it's possible to plant violets is to use the USDA zone info for Roselle.

Planting Calendar for Violets

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

Since violets are one of those plants that can tolerate a little bit of cold weather you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant violets in Roselle 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. Any later than that and your violets may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your violets indoors.

Last Frost Date

In Roselle the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Roselle is just an average the actual date of last frost changes from year to year. Half of the time in Roselle it frosts late in the year after April 15 so be sure to be ready to cover your violets in the event of a late frost.

USDA Zone Info for Roselle

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 Roselle

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