When to Plant Scarlet Runner Beans in Monroe, WA

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.

It's a good idea to figure out when it's possible to plant scarlet runner beans by looking at the USDA zone info for Monroe.


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 really shouldn't plant scarlet runner beans until after the last frost has passed because they require warm weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant scarlet runner beans
Possibly ok, but a risky time to plant scarlet runner beans
Probably not a good time to plant scarlet runner beans

The earliest that you can plant scarlet runner beans in Monroe 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. If you wait any later than that and your scarlet runner beans may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your scarlet runner beans indoors.

Last Frost Date

The average date of last frost is March 15 in Monroe. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Monroe may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Monroe you get a frost after March 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 Monroe

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 Low15°F
Highest Expected Low20°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 Monroe

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