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.

One way of estimating when you can plant runner beans is to use the USDA zone info for Lynden.

Planting Calendar for Runner beans

Frost tolerance for runner beans:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably not a good idea to plant runner beans until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant runner beans in Lynden 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 runner beans and expect a good harvest is probably August. If you wait any later than that and your runner beans may not have a chance to grow to maturity. Starting your runner beans indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Lynden. In the coldest months of winter you can expect an average low temperature of 10°F.

Always keep in mind that USDA zone info for Lynden is just an average and the actual date of last frost will vary from year to year. Half of the time in Lynden last frost occurs after March 15 so be sure to be ready to protect your runner beans in the event of a surprise late frost.

USDA Zone Info for Lynden

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Lynden

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