The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of getting a good idea when it's the best time to plant violets is to use the USDA zone info for Columbia City.

Planting Calendar for Violets

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

Violets are one of those plants that can tolerate a little bit of cold weather which tells us that you can start planting them earlier than more sensitive plants.

The earliest that you can plant violets in Columbia City 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. If you wait any later than that and your violets may not have a chance to fully mature. If you are starting your violets indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Columbia City is just an average the actual date of last frost will vary from year to year. Since half of the time in Columbia City it frosts late in the year after April 15 be ready to protect your violets in the event of a surprise late frost.

USDA Zone Info for Columbia City

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 Columbia City

You may be interested in your other planting guides for Columbia City.