Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By checking out the USDA zone info for Columbiana you will be able to figure out when it's possible to plant aubrieta.

Planting Calendar for Aubrieta

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

Aubrieta are moderately cold tolerant which means that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant aubrieta in Columbiana 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 really do well. You can get started a little bit earlier by starting your aubrieta indoors.

Last Frost Date

The average date of last frost is April 15 in Columbiana. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Columbiana is just an average the actual date of last frost changes from year to year. Half of the time in Columbiana you get a frost after April 15 so be sure to be ready to protect your aubrieta if you have one of those late frosts.

USDA Zone Info for Columbiana

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Columbiana

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