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

The USDA zone info for La Grande should be looked at to figure out when it's possible to plant scarlet runner beans.

Planting Calendar for Scarlet Runner Beans

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

It's not a good idea to plant scarlet runner beans until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant scarlet runner beans in La Grande 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 couple of weeks earlier by starting your scarlet runner beans indoors.

Last Frost Date

In La Grande the average date of last frost happens on April 15. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for La Grande is not always accurate the actual date of last frost is different every year. Half of the time in La Grande it frosts late in the year after April 15 so make sure that you are ready to cover your scarlet runner beans in the event of a surprise late frost.

USDA Zone Info for La Grande

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in La Grande

You may be interested in your other planting guides for La Grande.