One of the best tools that you have as gardeners to help us determine 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 USDA zone info for Inver Grove Heights should be looked at to determine when it's a good idea to plant shallots.

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.

You can plant shallots a bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant shallots in Inver Grove Heights 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 couple of weeks earlier by starting your shallots indoors.

Last Frost Date

In Inver Grove Heights the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Inver Grove Heights is just an average the actual date of last frost is different every year. Since half of the time in Inver Grove Heights it frosts late in the year after May 15 be ready to cover your shallots if you have one of those late frosts.

USDA Zone Info for Inver Grove Heights

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 Inver Grove Heights

You may be interested in your other planting guides for Inver Grove Heights.