One of the first steps you take when you are making a decision about your gardening schedule is find your 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.

You can estimate when to plant scarlet runner beans in Grand Ledge by reviewing the USDA zone info.

Planting Calendar for Scarlet Runner Beans

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

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

The earliest that you can plant scarlet runner beans in Grand Ledge 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. Any later than that and your scarlet runner beans may not have a chance to fully mature. Starting your scarlet runner beans indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Grand Ledge. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Grand Ledge is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Grand Ledge you get surprised by a frost after April 15 so make sure that you are ready to protect your scarlet runner beans in the event of a surprise late frost.

USDA Zone Info for Grand Ledge

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 Grand Ledge

You may be interested in your other planting guides for Grand Ledge.