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.

In Montrose you can determine when you can plant scarlet runner beans by referring to the USDA zone info.

Planting Calendar for Scarlet Runner Beans

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

It's not a good idea to plant scarlet runner beans until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant scarlet runner beans in Montrose 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. You probably don't want to wait any later than that or else your scarlet runner beans may not have a chance to really do well. 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

In Montrose the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -5°F.

Keep in mind that USDA zone info for Montrose is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Montrose you get surprised by a frost after April 15 so make sure that you are prepared to cover your scarlet runner beans in the event of one of those late frosts.

USDA Zone Info for Montrose

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Montrose

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