One of the best tools that you have as gardeners to help us figure out 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.

One way of determining when you can plant scarlet runner beans is to check out the USDA zone info for Mercedes.

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.

You should not plant scarlet runner beans until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant scarlet runner beans in Mercedes is March. However, you really should wait until April 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 September. Any later than that and your scarlet runner beans may not have a chance to really do well. If you are starting your scarlet runner beans indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on February 15 in Mercedes. It might get as low as 25°F during the coldest months of winter.

It's important to remember that USDA zone info for Mercedes is just an average and the actual date of last frost is different every year. Half of the time in Mercedes you get a frost after February 15 so make sure that you are ready to protect your scarlet runner beans if you have one of those late frosts.

USDA Zone Info for Mercedes

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Mercedes

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