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.

In Owatonna you can determine when it's a good idea to plant shallots by reviewing the USDA zone info.

Planting Calendar for Shallots

Frost tolerance for shallots:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Shallots are barely cold tolerant which means that you can plant them slightly earlier than other frost tender plants.

The earliest that you can plant shallots in Owatonna is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant shallots and expect a good harvest is probably August. Any later than that and your shallots may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your shallots indoors.

Last Frost Date

The average date of last frost is May 15 in Owatonna. It might get as low as -25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Owatonna is an average and the actual date of last frost is different every year. Since half of the time in Owatonna there is a last frost after May 15 be ready to protect your shallots in the event of a surprise late frost.

USDA Zone Info for Owatonna

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 Owatonna

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