One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Creve Coeur it's possible to figure out when it's possible to plant violets.

Planting Calendar for Violets

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

Since violets do well in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant violets in Creve Coeur 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 really do well. You can get started a couple of weeks earlier by starting your violets indoors.

Last Frost Date

On average the last frost is on April 15 in Creve Coeur. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Creve Coeur is just an average the actual date of last frost will vary from year to year. Half of the time in Creve Coeur you get a frost after April 15 so just be sure to be ready to cover your violets in the event of a surprise late frost.

USDA Zone Info for Creve Coeur

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Creve Coeur

You may be interested in your other planting guides for Creve Coeur.