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.

A common way of making a decision about when you can plant ajuga is to check out the USDA zone info for Hightstown.

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 much earlier in the year because they are very cold tolerant.

The earliest that you can plant ajuga in Hightstown 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. Any later than that and your ajuga may not have a chance to really do well. You can get started a couple of weeks earlier by starting your ajuga indoors.

Last Frost Date

The average date of last frost is April 15 in Hightstown. You can expect an average low temperature of -5°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Hightstown 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 Hightstown you get surprised by a frost after April 15 be ready to cover your ajuga in the event of a late frost.

USDA Zone Info for Hightstown

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Hightstown

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