Don’t be fooled by a plant’s size. Ajugas may be little, but they are strong and hardy groundcovers. They can help with erosion control on a bank or slope, fill in a patchy lawn where grass won’t grow, or simply offer color to shaded areas. They’re also excellent for planting beneath bushes and trees.
Ajugas are very attractive because their leaf color and attractiveness last virtually all year, and they produce blue, purple, or white blooms from spring to summer. Ajuga reptans, sometimes known as carpetweed or bugleweed, is a perennial that thrives in zones 3 to 9.
The lustrous leaves of these evergreen shrubs form dense mats. They can tolerate full sun to partial shade, but full sun brings out the greatest color in the leaf. Ajugas are easy to cultivate in practically any type of soil and prefer a moist, well-draining environment, but they can endure dryness for short periods of time.
Because ajuga spreads through stolons, or horizontal stems that creep along the ground, it’s important to consider where you plant it. This mint family member spreads quickly and can become invasive. Planting too close to flower beds, lawns, or other areas where you’ll have to remove it frequently is a bad idea. If you’re worried that ajuga is an invasive plant in your area, check out the Invasive Plant Atlas.
Plant ajugas when all dangers of frost have passed. Then, spacing the holes 8 to 15 inches apart, dig holes just deep enough for the root balls. Gently loosen the roots of the plants, then plant them and firm the dirt around them. To settle them in and eliminate air pockets, water them thoroughly. Fertilizing ajugas is rarely necessary.
To keep your ajugas from becoming overloaded, you should thin them every three years or so. If desired, divide and replant established clumps in the fall or early spring.
Crown rot is an issue, particularly in hot, humid climates or in heavy soils. It’s easy to notice since the lower leaves have rot and spots on the tops of the plants. Give your plants plenty of air circulation and avoid overfertilizing to avoid this illness. Crown rot has no treatment, therefore if it appears, you’ll have to uproot and destroy the damaged plants. When it’s time to replant, consider a new type of groundcover to reduce the chances of the problem reappearing.
Patches of ajuga will occasionally die. If this occurs, remove the dead leaves but leave the roots in place. In most cases, the plants will return the next year.
Ajugas are low-maintenance plants with good rabbit and deer resistance. They don’t need to be pruned, but if you want them to look a little neater after the blooms fade, mow them using a high setting on your mower.
Try coral bells, hostas, ferns, daffodils, astilbe, forget-me-not, violas, hardy geraniums, and other woodland species if your ajugas are in the shadow.
How quickly does ajuga spread?
Ajuga will try to conquer the entire region in its immediate proximity. Although it is an aggressive spreader, it is relatively easy to contain because it spreads over the ground.
It is recommended that you use a shovel or a spade to edge the borders of the territory limit assigned to Ajuga twice a year, once in the spring and once in the middle of summer.
There is no need to be concerned because this plant does not spread quickly; rather, it spreads slowly and steadily.
You should not plant this next to a lawn because grass cannot compete with it and will quickly become overrun, leaving you with an Ajuga lawn rather than a grass lawn.
Seeds
Planting seeds is one technique to begin propagating ajuga plants. Sow ajuga plant seeds in containers in the fall or spring if you chose to do so. Simply apply a small layer of compost to the seeds and keep the soil moist.
In a month or less, the seeds germinate. Individual plants should be pricked out and placed in larger containers. Move the young plants to your garden beds in the summer.
Division
Stolons, which are underground runners, spread Ajuga. The plant is rooted in neighboring soil by these runners, which create clumps. The ajuga clumps will soon get overcrowded, and their strength will wane. Now is the moment to lift and divide them so that you can have more ajuga plants.
Ajuga division propagation is best done in the early spring or late fall. It’s a straightforward procedure. Simply dig up the clumps, pull or chop them apart into smaller portions, and transplant them in a different spot.
You may also just chop away large portions of plant mats similar to lawn sod and relocate them.
Where should you plant ajuga?
Ajuga ground cover spreads via runners, and as a member of the mint family, it may quickly become out of hand if not properly cared for. When strategically put, however, its rapid growth and mat-forming ability can give instant covering with only a few plants. Enclosing your garden beds with edging is a fantastic method to keep this gem contained. Another method that I’ve discovered to be effective is to grow ajuga plants in a semi-sunny location.
Ajuga is commonly cultivated in gloomy areas, but it will thrive in the light as well, albeit more slowly, making it much easier to manage. The plant prefers moist soil as well, but it is very versatile and can even withstand a little drought.
Will ajuga choke out other plants?
There’s no doubting that Bishop’s Weed in variegated form is a lovely plant. It thrives in shady areas where splotches of white are needed to liven things up. But you’ll never be able to enjoy just a smidgeon of Bishop’s Weed. Its roots form a dense mat as it grows, suffocating any neighboring vegetation. While this may sound like a good way to keep weeds at bay, it will eventually take over your garden plants as well.
Bishop’s Weed was initially labeled as invasive in Rhode Island in 1863, although you can still get it for sale. You may probably determine it’s a member of the carrot family by looking at the white, umbel blossoms, which look a lot like Queen Anne’s Lace. The plant does attract helpful insects, so it has some virtues, but it is simply the incorrect plant for many situations.
If you’ve already planted Bishop’s Weed and regret it, the best way to get rid of it is to use up all of your resources. In the early spring, cut it as short as possible and cover the area with plastic. The plants are unable to photosynthesize, receive insufficient water, and are overheated. They ultimately give up, even if it takes a long time.
Goutweed (a mashup of goat weedgoats will eat it) and Snow on the Mountain are other names for Bishop’s Weed.
Is ajuga a good ground cover?
Ajuga is an ubiquitous groundcover, but this dark, coppery-burgundy variety works well with darker plants with spiky foliage, such as black mondo grass. Don’t be fooled by a plant’s size. Ajugas may be little, but they are strong and hardy groundcovers. The lustrous leaves of these evergreen shrubs form dense mats.
How do you control an ajuga ground cover?
The most effective ways for treating invasive bugleweeds are listed below.
Hand pulling – Whenever feasible, it’s ideal to manage undesired plants without the use of chemicals. Pulling and a lot of it is the best way to remove ajuga in an environmentally responsible manner. Ajuga will be easier to remove if you water the area the day before and loosen the soil around the plants with a shovel or garden fork. For more effective ajuga weed control, use a weeding fork to dig deep under the roots.
Take your time and remove as many roots as you can, as even small pieces left in the soil can take root and spread. Keep an eye on the area and remove any new plants as soon as they appear. It will take some time, but if you stick with it, you will finally win.
Can you walk on ajuga?
It’s true that good things come in small packages. Ajuga, for example, grows only a few inches tall but provides a dazzling display of color in your garden. This easy-care walking groundcover plant, sometimes known as bugleweed, is prized for its ability to carpet your yard with colorful foliage over time. Ajuga produces blue, purple, or white flower spikes in the spring above a base of bronze, chocolate, brilliant green, or bicolor foliage. Ajuga grows well in pots as well.
What is good ground cover?
Ground cover plants are excellent problem solvers in a variety of situations: They help pollinators like bees and butterflies by retaining moisture, controlling erosion, and providing habitat for pollinators like bees and butterflies. While grass is usually the greatest option for filling in gaps, low-growing plants can also be a better and more attractive option. There are numerous possibilities, including traditional favorites such as Pachysandra and Vinca, as well as small shrubs, perennials, and annuals.
Follow the recommendations on the plant care tag on your ground covers to ensure they get the job done (dressing up your landscape). To clarify, full sun is defined as an area that receives 6+ hours of direct sunshine per day, part sun is defined as 3 to 6 hours of direct sunlight, and full shade is defined as up to 3 hours of direct sunlight. If you’re going to plant a shrub or perennial that you want to last year after year, check sure it’s appropriate for your USDA Hardiness Zone (find yours here). Remember that, despite their extreme tolerance, these ground cover plants will need to be watered during dry spells for the first year or two until their root systems are well-established.
Does ajuga grow in shade?
These plants can grow in any generally well-drained soil, and while they tolerate full sun, they develop more quickly in partial shade. Plant these perennials 6 to 12 inches apart in the spring or early fall. Remove old flower spikes by mowing or trimming them.
What kind of soil does ajuga need?
Ajuga plants thrive in soil that is acidic to mildly acidic, with a pH of 4.5 to 6.5. The pH of most garden soils is in the range of 6.0 to 7.0.