One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Gunnison you can figure out when to plant twinspur by using the USDA zone info.

Planting Calendar for Twinspur

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

Twinspur are moderately cold tolerant which means that you can plant them earlier than other frost tender plants.

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

Last Frost Date

The average date of last frost is May 15 in Gunnison. In the coldest months of winter you can expect an average low temperature of -30°F.

Since the USDA zone info for Gunnison is an average the actual date of last frost will vary from year to year. Half of the time in Gunnison last frost occurs after May 15 so make sure that you are prepared to protect your twinspur if you have a surprise late frost.

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.