When to Plant Ajuga in Flat Rock, MI

One of the first steps you take when you are estimating 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.

The USDA zone info for Flat Rock can be read to determine when 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.

Since ajuga are very cold tolerant you can plant them a lot earlier in the year than plants that are more sensitive to the cold.

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 Flat Rock 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. You can get started a little bit earlier by starting your ajuga indoors.

Last Frost Date

The average date of last frost is April 15 in Flat Rock. In the coldest months of winter you should expect an average low temperature of -5°F.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Flat Rock and it can change quite a bit from year to year. Half of the time in Flat Rock last frost occurs after April 15 so make sure that you are ready to cover your ajuga in the event of a surprise late frost.

USDA Zone Info for Flat Rock

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 Low0°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 Flat Rock

You may be interested in your other planting guides for Flat Rock.