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.

The USDA zone info for Laramie can be looked at to determine when it's a good idea to plant arabis.

Planting Calendar for Arabis

Frost tolerance for arabis:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant arabis a lot earlier in the year because they are very cold tolerant.

The earliest that you can plant arabis in Laramie 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 arabis and expect a good harvest is probably August. If you wait any later than that and your arabis may not have a chance to really do well. Starting your arabis indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Laramie. You can expect an average low temperature of -25°F in 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 Laramie and it is different every year. Half of the time in Laramie you get a frost after May 15 so make sure that you are ready to cover your arabis if you have a late frost.

USDA Zone Info for Laramie

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 Laramie

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