The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to figure out when it's possible to plant scarlet runner beans by referring to the USDA zone info for Champlin.

Planting Calendar for Scarlet Runner Beans

Frost tolerance for scarlet runner beans:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since scarlet runner beans are not cold tolerant you need to wait until after the last frost before you can plant them.

The earliest that you can plant scarlet runner beans in Champlin 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 scarlet runner beans and expect a good harvest is probably August. Any later than that and your scarlet runner beans may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your scarlet runner beans indoors.

Last Frost Date

In Champlin 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.

Since the USDA zone info for Champlin is not always accurate the actual date of last frost will vary from year to year. Half of the time in Champlin you get a frost after May 15 so make sure that you are prepared to cover your scarlet runner beans if you have a surprise late frost.

USDA Zone Info for Champlin

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 Champlin

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