One of the first steps you take when you are making a decision about 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.

The first opportunity to plant evolvulus in Steamboat Springs should be determined by reviewing the USDA zone info.

Planting Calendar for Evolvulus

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

It's probably a bad idea to plant evolvulus 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 evolvulus in Steamboat Springs is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant evolvulus and expect a good harvest is probably August. Any later than that and your evolvulus may not have a chance to really do well. You can get started a few weeks earlier by starting your evolvulus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Steamboat Springs. You can expect an average low temperature of -25°F in the coldest months of winter.

It's important to remember that USDA zone info for Steamboat Springs is an average and the actual date of last frost changes from year to year. Half of the time in Steamboat Springs you get surprised by a frost after May 15 so make sure that you are prepared to cover your evolvulus if you have a late frost.

USDA Zone Info for Steamboat Springs

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Steamboat Springs

You may be interested in your other planting guides for Steamboat Springs.