When to Plant Ajuga in Charleston, IL

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

The earliest that you can plant ajuga in Charleston should be figured out by reviewing the USDA zone info.

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Planting Calendar for Ajuga

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

Ajuga do ok in pretty solid cold which means that you can plant them quite a bit earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant ajuga
Possibly ok, but a risky time to plant ajuga
Probably not a good time to plant ajuga

The earliest that you can plant ajuga in Charleston 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 grow to maturity. If you are starting your ajuga indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Charleston the average date of last frost happens on April 15. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Charleston is just an average the actual date of last frost changes from year to year. Half of the time in Charleston you get surprised by a frost 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 Charleston

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 Charleston

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