Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Colona you can figure out when to plant violets by referring to the USDA zone info.

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 little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant violets in Colona 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 fully mature. You can get started a few weeks earlier by starting your violets indoors.

Last Frost Date

On average the last frost is on April 15 in Colona. You can expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that USDA zone info for Colona is an average and the actual date of last frost is different every year. Half of the time in Colona you get surprised by a frost after April 15 so make sure that you are ready to cover your violets in the event of one of those late frosts.

USDA Zone Info for Colona

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 Colona

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