The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. 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 Circleville should be looked at to figure out when it's the best time to plant ajuga.

Planting Calendar for Ajuga

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

You can plant ajuga a lot earlier in the year because they do well in cold.

The earliest that you can plant ajuga in Circleville 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 ajuga and expect a good harvest is probably September. You probably don't want to wait any later than that or else your ajuga may not have a chance to really do well. If you are starting your ajuga indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Circleville may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Circleville you get surprised by a frost after April 15 be ready to protect your ajuga in the event of a surprise late frost.

USDA Zone Info for Circleville

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 Circleville

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