One of the first steps you take when you are determining your gardening schedule is find your 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 should be able to determine when you can plant aubrieta by looking at the USDA zone info for Fort Atkinson.

Planting Calendar for Aubrieta

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

Aubrieta do well in moderate cold which means that you can plant them earlier than other frost tender plants.

The earliest that you can plant aubrieta in Fort Atkinson is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant aubrieta and expect a good harvest is probably September. You probably don't want to wait any later than that or else your aubrieta may not have a chance to grow to maturity. Starting your aubrieta indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Fort Atkinson the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -20°F.

Since the USDA zone info for Fort Atkinson is an average the actual date of last frost is different every year. Since half of the time in Fort Atkinson there is a last frost after April 15 be ready to protect your aubrieta if you have a late frost.

USDA Zone Info for Fort Atkinson

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Fort Atkinson

You may be interested in your other planting guides for Fort Atkinson.