Ajuga is an extremely common plant, perennial in nature, exceedingly fast growing. This is a very hardy plant, and also very attractive with beautifully shaped leaves and exquisite azure flowers.
However, it not only grows rapidly, but can spread quickly, so if you plant it in your garden, you will have to control it or watch your garden be overrun by it.
The plant should be set about eighteen inches apart – the plants will grow from twenty four to forty eight inches wide with beautiful bronze, green or multicolored leaves.
If the plants are put in at the recommended distance, they will interlock and form a nice carpet. Among the most popular varieties -- “Chocolate Ship” ajuga plant.
The plants will grow just about three to four inches high. However, the flowers can grow to about a foot in height in larger varieties. The plant flowers in spring, and the flowers are an attractive blue color.
"While it's flowers are blue, pink, violet and a white version, (Alba) blooms from spring to early Summer, it's the leaves that takes the spotlight. The leaves are either grey-green and cream, mottled bronze and red, reddish purple or a metallic bronze."
Most will create a carpet like ground cover and one named Ajuga pyramidalis, which grows upright to about 3 to 4 inches tall, and Ajuga repants will reach 9 inches tall. It can spread to several feet. The leaves can not take a lot of foot traffic.
Light requirements
This plant needs to be protected from sunlight as it grows stunted and unhealthy in strong sunlight. It is best planted in partial shade or even full shade, perhaps in the shadow of a house or tree that will protect it at least part of the day. In these circumstances it will grow well and spread quickly.
Weed like nature
These Plants will attempt to take over the entire territory in its vicinity. However, those it is an aggressive spreader, it is also fairly easily contained as it grows spreading over the ground.
It is suggested that you contain it by using a shovel or spade to edge the borders of the territory allotted to it twice annually, once in spring and again around the middle of summer.
There is no need for alarm as this plant does not spread rapidly, rather it spread is slow and steady. Be warned that you must not plant this next to a lawn as grass cannot compete with this plant for survival and will be quickly overrun, leaving you with an ajuga lawn instead of a grass one.
Soils
Carpet bugle will thrive in any soil, it's not that particular. However, they don't like their roots in water, moist is good however.
Ajuga Plants generally prefer a soil dominated by clay or sand, though of course it will grow in any soil, but not so well. However, when planting it in clay soils be careful that the clay is not too heavy as this plant tends to rot under these conditions.
Other requirements
Ajuga Plants need plenty of water, even when growing in the shade, if you want them to flower. Note that if trees are nearby, as they often are, because these plants like shade, then the tree roots themselves will leach the water that this plant requires and so stunt its growth. However once this plant is probably established, it rarely has problems. Other than this, it requires little care. Just plant ajuga seeds, care for the plants for a few weeks until they are established, and they will maintain themselves.
It is important to note that while this plant provides ground cover, it cannot and must not be walked on. This is especially important to know as there are actually companies that claim that the ajuga seeds that they sell grow into beds that can be walked on. This is highly unlikely. Ajuga might survive being walked over very occasionally, but regular foot traffic will surely damage the beds, kill the plants and at the very least make them look very unattractive.
Blooms
The flowers are usually dark blue in color, and have a dense blooming time in early spring. They also bloom occasionally all through the warm month.
Propagation
This plant is best propagated in spring. The plant must be divided and then replanted at once.
Propagate by division any time during the growing season. If this gardening shade flower becomes too dense with little air circulation there is a danger of crown rot.
The result is patches of bare spots. So division will keep this to a minimum. One benefit to the density is that it chocks out weeds.
A humus rich, moist soil is best, good air circulation is a must and don't let the roots stand in water.
More Pictures of Ajuga Plants
Ajuga also known as bugleweed is a colorful ground cover. Rapidly filling in between bulbs, bushes and under trees. A low growing perennial that is ever-green.
Ajuga is an extremely common plant, perennial in nature, exceedingly fast growing. This is a very hardy plant, and also very attractive with beautifully shaped leaves and exquisite azure flowers. 
The result is patches of bare spots. So division will keep this to a minimum. One benefit to the density is that it chocks out weeds.
