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.

It's possible to figure out when to plant scarlet runner beans by reviewing the USDA zone info for Waterville.

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 do not do well in cold weather.

The earliest that you can plant scarlet runner beans in Waterville 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. 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 April 15 in Waterville. It might get as low as -10°F during the coldest months of winter.

It's important to remember that USDA zone info for Waterville is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Waterville last frost occurs after April 15 be ready to protect your scarlet runner beans if you have one of those late frosts.

USDA Zone Info for Waterville

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Waterville

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