Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Steamboat Springs you will be able to estimate when it's the best time to plant brunfelsia.

Planting Calendar for Brunfelsia

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

It's probably not a good idea to plant brunfelsia until after all chance of frost has passed because they require warm weather.

The earliest that you can plant brunfelsia 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 brunfelsia and expect a good harvest is probably August. If you wait any later than that and your brunfelsia may not have a chance to grow to maturity. You can get started a little bit earlier by starting your brunfelsia indoors.

Last Frost Date

The average date of last frost is May 15 in Steamboat Springs. You can expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Steamboat Springs is just an average the actual date of last frost changes from year to year. Since half of the time in Steamboat Springs it frosts late in the year after May 15 be ready to cover your brunfelsia if you have one of those late frosts.

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.