Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Steilacoom you can estimate when to plant scarlet runner beans by checking out the USDA zone info.

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 require warm weather which means that it's necessary to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant scarlet runner beans in Steilacoom 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 grow to maturity. Starting your scarlet runner beans indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Steilacoom the average date of last frost happens on March 15. You should expect an average low temperature of 15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Steilacoom is an average and the actual date of last frost is different every year. Since half of the time in Steilacoom last frost occurs after March 15 be ready to cover your scarlet runner beans in the event of a surprise late frost.

USDA Zone Info for Steilacoom

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Steilacoom

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