When to Plant Green beans in Beaverton, OR

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when you can plant green beans by reviewing the USDA zone info for Beaverton.


Planting Calendar for Green beans

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

You should not plant green beans until after all chance of frost has passed because they are not cold tolerant.

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

The earliest that you can plant green beans in Beaverton 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 green beans and expect a good harvest is probably August. If you wait any later than that and your green beans may not have a chance to grow to maturity. If you are starting your green 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 March 15 in Beaverton. In the coldest months of winter you should expect an average low temperature of 15°F.

Just be sure to remember that USDA zone info for Beaverton is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Beaverton last frost occurs after March 15 so always be ready to cover your green beans if you have one of those late frosts.

USDA Zone Info for Beaverton

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 Beaverton

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