One of the best tools that you have as gardeners to help us determine 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.

You will be able to estimate when it's possible to plant broccoli by checking out the USDA zone info for Gunnison.

Planting Calendar for Broccoli

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

Since broccoli are moderately cold tolerant you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant broccoli in Gunnison is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant broccoli and expect a good harvest is probably August. If you wait any later than that and your broccoli may not have a chance to really do well. You can get started a couple of weeks earlier by starting your broccoli indoors.

Last Frost Date

The average date of last frost is May 15 in Gunnison. It might get as low as -30°F during the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Gunnison and it changes from year to year. Half of the time in Gunnison you get a frost after May 15 so always be ready to protect your broccoli if you have one of those late frosts.

USDA Zone Info for Gunnison

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Gunnison

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