One of the first steps you take when you are determining 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.

You can estimate when it's possible to plant snap beans in Denver by reviewing the USDA zone info.

Planting Calendar for Snap beans

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

You really shouldn't plant snap 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 snap beans in Denver 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 snap beans and expect a good harvest is probably August. You probably don't want to wait any later than that or else your snap beans may not have a chance to fully mature. If you are starting your snap 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 April 15 in Denver. It might get as low as -15°F during the coldest months of winter.

Keep in mind that USDA zone info for Denver is just an average and the actual date of last frost is different every year. Half of the time in Denver last frost occurs after April 15 so make sure that you are ready to cover your snap beans if you have a surprise late frost.

USDA Zone Info for Denver

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Denver

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