Purple ground cover plants add a touch of magic and sophistication to any landscape. The rich hues create a visually appealing carpet, contrasting beautifully with green foliage and vibrant blooms. But often, gardeners and homeowners find themselves asking, “What exactly is that purple ground cover called?” The answer, while seemingly simple, can be a bit more nuanced than you might expect. Several plants boast purple or purplish-toned foliage, making identification crucial for proper care and placement. This article will delve into the most popular and striking purple ground covers, providing detailed information to help you identify and cultivate these captivating additions to your garden.
Decoding the Purple Palette: Popular Purple Ground Covers
The world of purple ground covers isn’t limited to a single species. Instead, a variety of plants display purplish foliage, each with unique characteristics. Identifying the correct plant requires careful observation of leaf shape, size, texture, and blooming habits. Let’s explore some of the most commonly encountered purple ground covers:
Purple Heart (Tradescantia pallida ‘Purpurea’)
One of the most recognizable purple ground covers is Purple Heart, scientifically known as Tradescantia pallida ‘Purpurea’. This plant is cherished for its vibrant, lance-shaped leaves that are a deep, almost iridescent purple.
Originating from Mexico, Purple Heart is relatively easy to grow, thriving in warm climates and tolerating a range of soil conditions. Its resilience and striking color make it a favorite for adding visual interest to gardens, containers, and hanging baskets. Small, pinkish-purple flowers may appear sporadically throughout the year, adding a delicate contrast to the bold foliage.
Purple Heart thrives in full sun to partial shade. More sunlight intensifies the purple coloration, while excessive shade may cause the leaves to fade to a greenish hue. Regular watering is essential, especially during dry periods. However, avoid overwatering, as this can lead to root rot.
Propagation of Purple Heart is incredibly simple. Stem cuttings root readily in water or directly in soil, making it easy to expand your collection or share with friends. Its fast growth rate allows it to quickly fill in spaces, creating a dense and colorful ground cover.
Creeping Thyme (Thymus serpyllum) ‘Purple Beauty’
While most varieties of creeping thyme are known for their green foliage, the ‘Purple Beauty’ cultivar offers a delightful twist. Although the foliage isn’t intensely purple like Purple Heart, it takes on a beautiful bronzed-purple hue, especially during the cooler months.
Creeping thyme is a low-growing, aromatic herb that forms a dense mat of tiny leaves. In addition to its attractive foliage, ‘Purple Beauty’ produces masses of tiny, vibrant purple flowers in the summer, creating a stunning carpet of color.
Creeping thyme is exceptionally drought-tolerant, making it an excellent choice for rock gardens, pathways, and between stepping stones. It thrives in full sun and well-drained soil. Its fragrant foliage releases a delightful aroma when stepped on, adding another sensory dimension to the garden.
‘Purple Beauty’ creeping thyme is not only visually appealing but also beneficial to pollinators. Bees and butterflies are attracted to its nectar-rich flowers, making it a valuable addition to any pollinator-friendly garden. Pruning after flowering helps to maintain its compact shape and encourages new growth.
Sedum ‘Vera Jameson’
Sedum ‘Vera Jameson’ is a captivating succulent ground cover renowned for its smoky, plum-purple foliage. This hardy plant provides year-round interest, with its color intensifying in the cooler months.
‘Vera Jameson’ sedum is a relatively low-maintenance plant, tolerating dry conditions and poor soils. It thrives in full sun, where its purple coloration is most pronounced. In late summer and early autumn, it produces clusters of star-shaped, pink flowers, attracting bees and butterflies.
This sedum is an excellent choice for rock gardens, borders, and containers. Its drought tolerance makes it ideal for xeriscaping, a water-wise gardening approach. ‘Vera Jameson’ sedum is also deer-resistant, making it a worry-free option for gardens in areas with deer populations.
Propagation of ‘Vera Jameson’ sedum is easily achieved through stem cuttings or leaf propagation. Simply allow the cuttings or leaves to callous over for a few days before planting them in well-draining soil.
Ajuga (Ajuga reptans) ‘Black Scallop’
Ajuga, also known as bugleweed, is a popular ground cover prized for its attractive foliage and colorful flower spikes. The ‘Black Scallop’ cultivar stands out with its deep, near-black, scalloped leaves that often exhibit a purplish undertone.
‘Black Scallop’ ajuga forms a dense, spreading mat, effectively suppressing weeds. In spring, it produces upright spikes of blue or purple flowers, adding a vertical element to the landscape. The contrast between the dark foliage and the vibrant flowers is particularly striking.
Ajuga is adaptable to a range of growing conditions, thriving in partial shade to full sun. It prefers moist, well-drained soil but can tolerate some drought. ‘Black Scallop’ is a vigorous grower, so it may require occasional pruning to prevent it from spreading too aggressively.
This ground cover is an excellent choice for woodland gardens, shady borders, and underplanting trees and shrubs. Its deer resistance makes it a valuable asset in areas with deer pressure. ‘Black Scallop’ ajuga is also a favorite of pollinators, attracting bees and butterflies to the garden.
Alternanthera (Alternanthera dentata) ‘Purple Knight’
Alternanthera ‘Purple Knight’ is a show-stopping foliage plant that makes a bold statement in any garden. Its deep purple, almost black, leaves provide a dramatic contrast to other plants. While not always considered a traditional ground cover, it can effectively function as one in warmer climates due to its spreading habit.
‘Purple Knight’ alternanthera thrives in full sun, where its purple coloration is most intense. It prefers well-drained soil and regular watering. In colder climates, it is often grown as an annual, as it is not frost-hardy.
This plant is an excellent choice for adding a touch of drama to borders, containers, and mass plantings. Its vibrant color and unique texture make it a focal point in the landscape. ‘Purple Knight’ alternanthera is also relatively pest-resistant, making it a low-maintenance option for adding visual interest.
Propagation of ‘Purple Knight’ alternanthera is easily accomplished through stem cuttings. Simply take cuttings in the spring or summer and root them in water or directly in soil.
Beyond the Basics: Factors Influencing Purple Coloration
The intensity and shade of purple in these ground covers can be influenced by several factors. Understanding these influences can help you maximize the beauty of your purple foliage.
Sunlight Exposure
Sunlight plays a crucial role in the development of purple pigments in plants. Generally, more sunlight leads to more intense purple coloration. Plants like Purple Heart and ‘Purple Knight’ alternanthera will exhibit their deepest purple hues when grown in full sun. However, be mindful of scorching, especially in hot climates. Providing some afternoon shade can help prevent leaf burn.
Conversely, insufficient sunlight can cause purple foliage to fade to green. If your purple ground cover is losing its color, consider relocating it to a sunnier spot.
Soil Conditions
Soil pH and nutrient availability can also impact the color of purple foliage. Acidic soils tend to enhance purple coloration in some plants, while alkaline soils may make the color less vibrant.
Nutrient deficiencies can also affect foliage color. A lack of phosphorus, for example, can sometimes cause leaves to turn reddish-purple. Conducting a soil test can help you identify any nutrient deficiencies and amend the soil accordingly.
Temperature Fluctuations
Temperature fluctuations, particularly cooler temperatures, can intensify purple coloration in some ground covers. Creeping thyme ‘Purple Beauty,’ for instance, develops a richer purple hue during the cooler months.
This phenomenon is due to the production of anthocyanins, pigments that contribute to red, purple, and blue colors in plants. Anthocyanin production is often stimulated by cooler temperatures and increased sunlight.
Plant Variety and Genetics
Ultimately, the genetic makeup of the plant determines its potential for purple coloration. Different cultivars of the same species can exhibit varying degrees of purple pigmentation.
When selecting purple ground covers, choose cultivars that are known for their intense purple color. Researching the specific characteristics of each cultivar can help you make informed decisions and achieve the desired look in your garden.
Cultivating Your Purple Paradise: Tips for Success
Growing purple ground cover is generally straightforward, but following a few key tips can ensure success.
Proper Planting and Spacing
When planting your purple ground cover, choose a location that meets its specific sunlight and soil requirements. Space the plants according to their mature size to allow for adequate air circulation and prevent overcrowding.
Dig a hole that is twice as wide as the plant’s root ball and just as deep. Gently loosen the roots before placing the plant in the hole. Backfill with soil and water thoroughly.
Watering and Fertilizing
Water your purple ground cover regularly, especially during the first few weeks after planting. Once established, many purple ground covers are drought-tolerant.
Fertilize your purple ground cover sparingly, using a balanced fertilizer. Avoid over-fertilizing, as this can promote excessive growth and reduce the intensity of the purple color.
Pruning and Maintenance
Prune your purple ground cover as needed to maintain its shape and prevent it from spreading too aggressively. Deadheading spent flowers can encourage new growth and prolong the blooming season.
Remove any dead or diseased foliage to prevent the spread of disease. Mulching around your purple ground cover can help to suppress weeds and retain moisture.
Pest and Disease Control
Purple ground covers are generally pest-resistant, but they can occasionally be affected by common garden pests such as aphids or spider mites. Inspect your plants regularly and treat any infestations promptly.
Prevent fungal diseases by providing good air circulation and avoiding overwatering. If diseases do occur, treat them with an appropriate fungicide.
Enhancing Your Landscape with Purple Ground Cover
Incorporating purple ground cover into your landscape design can add depth, texture, and visual interest. These versatile plants can be used in a variety of ways to create stunning effects.
Creating Contrasting Borders
Purple ground cover can be used to create striking borders along pathways, flower beds, and lawns. The contrasting color of the purple foliage will make your garden stand out and add a touch of elegance.
Adding Depth to Rock Gardens
Purple ground cover is an excellent choice for rock gardens, where its low-growing habit and drought tolerance are well-suited to the rocky terrain. The purple foliage will create a beautiful contrast to the gray rocks and other succulents.
Filling in Spaces Between Stepping Stones
Creeping thyme ‘Purple Beauty’ is an ideal choice for filling in the spaces between stepping stones. Its fragrant foliage will release a delightful aroma when stepped on, and its purple flowers will add a pop of color.
Underplanting Trees and Shrubs
Purple ground cover can be used to underplant trees and shrubs, creating a living mulch that helps to suppress weeds and retain moisture. The purple foliage will also add visual interest to the base of the trees and shrubs.
Creating a Monochromatic Garden
For a truly dramatic effect, consider creating a monochromatic purple garden. Use different shades and textures of purple foliage to create a layered and visually appealing design.
Purple ground covers are versatile and captivating additions to any garden, offering a spectrum of hues and textures to enhance your landscape. By understanding the specific needs of each plant and paying attention to factors that influence coloration, you can create a stunning purple paradise that will be the envy of your neighbors. So, the next time you admire that striking purple carpet, you’ll be well-equipped to identify it and perhaps even cultivate your very own.
What ground cover plants commonly display a stunning purple hue?
Several ground cover plants are known for their beautiful purple foliage or flowers. Some popular choices include creeping thyme varieties like ‘Purple Carpet’ thyme, bugleweed (Ajuga reptans) cultivars such as ‘Black Scallop’ or ‘Mahogany’, and certain sedums, like Sedum spurium ‘Dragon’s Blood’ which turns a reddish-purple color in cooler temperatures. Consider the specific shade of purple you desire, as well as the growing conditions in your garden (sun exposure, soil type, drainage) to choose the best option for your needs.
These purple ground covers offer various textures and growth habits, making them suitable for different landscaping purposes. Thyme is excellent for pathways and rock gardens, while bugleweed spreads quickly and effectively suppresses weeds. Sedums, on the other hand, are drought-tolerant and ideal for sunny, well-drained locations. Researching each plant’s individual requirements will ensure a thriving and visually appealing purple ground cover display.
How do I identify a specific purple ground cover plant?
Identifying a specific purple ground cover requires careful observation of its key characteristics. Pay attention to the leaf shape, size, and texture, as well as the presence or absence of flowers and their color. Also, consider the plant’s growth habit – does it spread rapidly or slowly? Is it a dense mat or more open and airy? Taking detailed photographs can also be helpful for comparison.
Using plant identification apps or consulting with local nurseries and botanical gardens can greatly assist in the identification process. These resources often have access to databases and experts who can analyze the plant’s features and provide an accurate identification. Providing them with details about the location where you found the plant and its growing conditions can further narrow down the possibilities.
What are the ideal growing conditions for most purple ground cover plants?
Most purple ground cover plants thrive in well-drained soil and prefer full to partial sunlight. Well-draining soil is crucial to prevent root rot, a common issue with ground covers. The amount of sunlight required can vary depending on the specific plant species, so it’s important to research the ideal conditions for the variety you choose.
While many purple ground covers are relatively low-maintenance, regular watering during dry periods is essential, especially when the plants are first establishing themselves. Fertilizing occasionally with a balanced fertilizer can promote healthy growth and vibrant color, but avoid over-fertilizing, which can lead to excessive foliage growth at the expense of flowering. Mulching around the plants can also help retain moisture, suppress weeds, and regulate soil temperature.
What are the benefits of using purple ground cover plants in my garden?
Purple ground cover plants offer a multitude of benefits for gardeners. Beyond their striking visual appeal, they can act as excellent weed suppressants, reducing the need for herbicides and manual weeding. Their dense growth habit effectively crowds out unwanted plants, creating a low-maintenance and aesthetically pleasing landscape.
Furthermore, many purple ground covers are beneficial to pollinators, attracting bees, butterflies, and other beneficial insects to your garden. This can contribute to a healthier and more diverse ecosystem, promoting pollination and supporting local wildlife. Some varieties also release fragrant oils when stepped on, adding a sensory element to your garden experience.
Are purple ground cover plants deer resistant?
Deer resistance varies depending on the specific purple ground cover plant and the local deer population. Some varieties, such as certain thyme species and creeping phlox, are generally considered deer resistant due to their strong scent or texture. However, deer preferences can change depending on food availability and environmental factors.
While a plant may be labeled as “deer resistant,” it doesn’t guarantee that deer won’t browse on it if other food sources are scarce. To further protect your purple ground cover from deer, consider using deer repellents, fencing, or companion planting with other deer-resistant species. Regularly monitoring your plants for signs of deer damage is also important.
How do I propagate purple ground cover plants?
Purple ground cover plants can often be propagated through various methods, including division, stem cuttings, and layering. Division involves separating a mature plant into smaller sections, each with its own root system, and replanting them. This is best done in the spring or fall when the plant is not actively growing.
Stem cuttings are taken from healthy stems and rooted in water or potting mix. Layering involves bending a stem to the ground and covering a portion of it with soil, allowing it to develop roots before being severed from the parent plant. The best propagation method will depend on the specific plant species and your personal preferences. Researching the recommended techniques for your chosen variety will increase your success rate.
What are some common problems encountered when growing purple ground cover, and how can I address them?
Common problems encountered when growing purple ground cover include root rot, fungal diseases, and pest infestations. Root rot is often caused by poorly draining soil, so ensuring proper drainage is crucial. Fungal diseases can be prevented by providing adequate air circulation and avoiding overhead watering.
Pest infestations, such as aphids or spider mites, can be addressed with insecticidal soap or neem oil. Regularly inspecting your plants for signs of pests or diseases is essential for early detection and treatment. Providing the plants with optimal growing conditions, including proper sunlight, water, and nutrients, can also help them resist pests and diseases naturally.