One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant impatiens in Kingsford should be determined by referring to the USDA zone info.

Planting Calendar for Impatiens

Frost tolerance for impatiens:	Not tolerant of frost.
When to plant:	After the last frost.

Since impatiens do not do well in cold weather it is necessary to wait until after the last frost before you can plant them.

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

The last month that you can plant impatiens and expect a good harvest is probably August. You probably don't want to wait any later than that or else your impatiens may not have a chance to fully mature. If you are starting your impatiens indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Kingsford. In the coldest months of winter you can expect an average low temperature of -30°F.

It's important to remember that USDA zone info for Kingsford is an average and the actual date of last frost changes from year to year. Half of the time in Kingsford you get surprised by a frost after May 15 so make sure that you are ready to protect your impatiens in the event of a surprise late frost.

USDA Zone Info for Kingsford

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Kingsford

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