One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant violets in Prior Lake should be figured out 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 more sensitive plants.

The earliest that you can plant violets in Prior Lake is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant violets and expect a good harvest is probably August. Any later than that and your violets may not have a chance to grow to maturity. Starting your violets indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Prior Lake the average date of last frost happens on May 15. You should expect an average low temperature of -25°F in the coldest months of winter.

Remember that USDA zone info for Prior Lake is not always accurate and the actual date of last frost changes from year to year. Half of the time in Prior Lake you get surprised by a frost after May 15 so make sure that you are prepared to protect your violets in the event of a late frost.

USDA Zone Info for Prior Lake

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Prior Lake

You may be interested in your other planting guides for Prior Lake.