Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when it's a good idea to plant scarlet runner beans is to examine the USDA zone info for Lansing.

Planting Calendar for Scarlet Runner Beans

Frost tolerance for scarlet runner beans:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Scarlet Runner Beans are not cold tolerant which tells us that you have to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant scarlet runner beans in Lansing 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 scarlet runner beans and expect a good harvest is probably August. You probably don't want to wait any later than that or else your scarlet runner beans may not have a chance to really do well. You can get started a few weeks earlier by starting your scarlet runner beans indoors.

Last Frost Date

On average the last frost is on April 15 in Lansing. It might get as low as -15°F during the coldest months of winter.

Keep in mind that USDA zone info for Lansing is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Lansing there is a last frost after April 15 be ready to cover your scarlet runner beans if you have a late frost.

USDA Zone Info for Lansing

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Lansing

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