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.

By reviewing the USDA zone info for Libertyville you will be able to determine when it's the best time 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.

Since aubrieta are one of those plants that can tolerate a little bit of cold weather you can plant them a little bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant aubrieta in Libertyville 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. If you wait any later than that and your aubrieta may not have a chance to grow to maturity. If you are starting your aubrieta indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Libertyville. In the coldest months of winter you can expect an average low temperature of -15°F.

Remember that USDA zone info for Libertyville is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Libertyville last frost occurs after April 15 be ready to cover your aubrieta in the event of one of those late frosts.

USDA Zone Info for Libertyville

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Libertyville

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