The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Boulder City you can determine when to plant brussels sprouts by referring to the USDA zone info.

Planting Calendar for Brussels Sprouts

Frost tolerance for brussels sprouts:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Brussels Sprouts are one of those plants that can tolerate a little bit of cold weather which means that you can plant them a little bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant brussels sprouts in Boulder City is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant brussels sprouts and expect a good harvest is probably October. If you wait any later than that and your brussels sprouts may not have a chance to really do well. If you are starting your brussels sprouts indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Boulder City the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Boulder City is just an average the actual date of last frost will vary from year to year. Since half of the time in Boulder City you get a frost after February 15 be ready to cover your brussels sprouts if you have one of those late frosts.

USDA Zone Info for Boulder City

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 Boulder City

You may be interested in your other planting guides for Boulder City.