When to Plant Pole beans in Mill Creek, WA

One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when it's a good idea to plant pole beans by checking out the USDA zone info for Mill Creek.

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Planting Calendar for Pole beans

Frost tolerance for pole beans: Not tolerant of frost.
When to plant: After the last frost has passed.

Pole beans do not do well in cold weather which tells us that it's important to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

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

The earliest that you can plant pole beans in Mill Creek 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 pole beans and expect a good harvest is probably August. You probably don't want to wait any later than that or else your pole beans may not have a chance to fully mature. Starting your pole beans indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Mill Creek is an average and the actual date of last frost is different every year. Since half of the time in Mill Creek you get surprised by a frost after March 15 be ready to protect your pole beans if you have a late frost.

USDA Zone Info for Mill Creek

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 Mill Creek

You may be interested in your other planting guides for Mill Creek.