One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's a good idea to plant ajuga in Robbins by checking out the USDA zone info.

Planting Calendar for Ajuga

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

Ajuga do well in cold which tells us that you can plant them a quite a bit earlier than other frost tender plants.

The earliest that you can plant ajuga in Robbins 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. If you wait 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 few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Robbins is not always accurate the actual date of last frost changes from year to year. Half of the time in Robbins last frost occurs after April 15 so make sure that you are ready to cover your ajuga if you have one of those late frosts.

USDA Zone Info for Robbins

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 Robbins

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