One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By using the USDA zone info for Westminster it's possible to figure out when it's the best time to plant scarlet runner beans.

Planting Calendar for Scarlet Runner Beans

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

You can not plant scarlet runner beans until after the last frost because they require warm weather.

The earliest that you can plant scarlet runner beans in Westminster is February. However, you really should wait until March 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 September. If you wait any later than that and your scarlet runner beans may not have a chance to really do well. You can get started a few weeks earlier by starting your scarlet runner beans indoors.

Last Frost Date

The average date of last frost is January 31 in Westminster. It might get as low as 35°F during the coldest months of winter.

It's important to remember that USDA zone info for Westminster is not always accurate and the actual date of last frost is different every year. Since half of the time in Westminster there is a last frost after January 31 be ready to cover your scarlet runner beans if you have a surprise late frost.

USDA Zone Info for Westminster

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Westminster

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