Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Greencastle it's a good idea to determine when it's possible 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 are one of those plants that can tolerate quite a bit of cold weather.

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

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Greencastle. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Greencastle 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 Greencastle it frosts late in the year after April 15 be ready to protect your ajuga if you have a late frost.

USDA Zone Info for Greencastle

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 Greencastle

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