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.

It's a good idea to estimate when it's the best time to plant ajuga by reviewing the USDA zone info for Watchung.

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 earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

The earliest that you can plant ajuga in Watchung 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. Starting your ajuga indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Watchung the average date of last frost happens on April 15. You should expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Watchung is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Watchung last frost occurs after April 15 so just be sure to be ready to cover your ajuga if you have one of those late frosts.

USDA Zone Info for Watchung

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 Watchung

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