One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when you can plant scarlet runner beans is to use the USDA zone info for El Mirage.

Planting Calendar for Scarlet Runner Beans

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

You really shouldn't 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 El Mirage 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. 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 couple of weeks earlier by starting your scarlet runner beans indoors.

Last Frost Date

The average date of last frost is February 15 in El Mirage. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for El Mirage is just an average the actual date of last frost is different every year. Since half of the time in El Mirage last frost occurs after February 15 be ready to protect your scarlet runner beans if you have one of those late frosts.

USDA Zone Info for El Mirage

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in El Mirage

You may be interested in your other planting guides for El Mirage.