The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of figuring out when it's the best time to plant scarlet runner beans is to use the USDA zone info for Wharton.

Planting Calendar for Scarlet Runner Beans

Frost tolerance for scarlet runner beans:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Scarlet Runner Beans require warm weather which means that you have to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant scarlet runner beans in Wharton is March. However, you really should wait until April 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. Any later than that and your scarlet runner beans may not have a chance to fully mature. If you are starting your scarlet runner beans indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Wharton. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Wharton may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Wharton last frost occurs after February 15 so make sure that you are ready to protect your scarlet runner beans if you have one of those late frosts.

USDA Zone Info for Wharton

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Wharton

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