What Are Low Growing Perennials?
Low growing perennials are plants that return year after year, staying relatively compact and rarely exceeding a height of 30-45 cm. They are invaluable for creating dense ground cover, defining garden borders, or adding texture without overwhelming smaller spaces or taller plants. Their persistent nature means less annual planting and more enduring garden structure.
- Perennials return annually, offering long-term garden value.
- Low growers stay compact, ideal for ground cover and borders.
- They reduce the need for frequent replanting.
- Durable, they provide sustained visual interest.
Unlike annuals, which complete their life cycle in a single season and require replanting each year, perennials establish a root system that sustains them through winter dormancy. This makes them a more sustainable and economical choice for gardeners seeking continuous beauty with reduced effort. The term 'low growing' is relative, but for this context, we focus on varieties that typically stay below knee-height, forming a neat, spreading habit rather than an upright presence.
These plants are foundational to many garden designs, serving purposes from suppressing weeds with their dense foliage to softening hard landscaping elements. They can fill the front of borders, spill over the edges of paths, or blanket difficult-to-maintain slopes. The key benefit is their reliable return, providing a stable framework that evolves subtly with the seasons.
Understanding Perennial Growth Habits
When selecting low growing perennials, consider their mature spread as much as their height. Some creep and spread widely, forming excellent weed-suppressing mats, while others maintain a more clump-forming habit. Understanding these differences is crucial for achieving the desired effect and ensuring plants have adequate space to thrive without becoming overcrowded.
The variety in foliage texture, leaf colour, and bloom time among low growing perennials means you can create dynamic displays that last for months. From the velvety leaves of certain heucheras to the bright blooms of creeping phlox, these plants offer a rich tapestry of options for any garden situation, whether sunny or shaded.
Choosing Low Growing Perennials for Sun
When your garden beds receive ample sunlight throughout the day, a wide array of low growing perennials can thrive, offering vibrant colours and textures. These sun-lovers are generally hardier and bloom more profusely when exposed to direct light, making them ideal for exposed borders, rock gardens, or front-of-bed plantings.
Consider plants like Sedum varieties, often referred to as stonecrop. Many low-growing Sedums, such as 'Angelina' with its golden foliage or 'Dragon's Blood' with its deep red leaves, form spreading mats. They are drought-tolerant once established and offer late-season interest with their starry flowers, which often attract pollinators. Similarly, Thyme varieties, particularly culinary types like Thymus vulgaris or ornamental ones like Thymus serpyllum (creeping thyme), provide fragrant foliage and tiny flowers while forming a dense, mat-like ground cover that can withstand foot traffic to some degree.
Vibrant Sun-Loving Options
For a splash of colour, Dianthus (pinks) are superb. Many are low-growing, with fringed flowers in shades of pink, red, and white, often highly fragrant. They prefer well-drained soil and full sun. Another excellent choice is Coreopsis verticillata 'Moonbeam' or 'Zagreb', which offer delicate, daisy-like flowers and fine, fern-like foliage, providing a softer texture in sunny borders. These varieties typically stay under 30 cm, making them perfect for the front of a border.
Echinacea purpurea 'Little Magnus' or other dwarf coneflower cultivars present cheerful, long-lasting blooms that attract bees and butterflies. While some coneflowers can grow tall, dwarf varieties remain compact. Campanula, particularly species like Campanula portenschlagiana (Dalmatian bellflower) or Campanula garganica, can also be stellar choices. These form dense mounds or mats of foliage, erupting in a profusion of blue, purple, or white bell-shaped flowers, ideal for rockeries or the front of sunny beds.
Ensure excellent drainage for sun-loving low growers; waterlogging is a common pitfall, even for drought-tolerant species.
When planning, think about succession of bloom. By combining plants with different flowering times – for instance, early-blooming Dianthus with mid-summer Coreopsis and late-blooming Sedum – you can ensure continuous colour from spring through autumn. Always check the specific mature size of the cultivar you choose, as 'low growing' can still vary significantly.
Perennial Low Growing Plants for Shaded Areas
Shaded garden spots often present a challenge, but a wealth of low growing perennial plants are perfectly adapted to thrive where direct sun is limited. These shade-loving varieties bring lush foliage, subtle blooms, and enduring structure to areas beneath trees, along north-facing walls, or in dappled woodland settings.
Hostas are perhaps the most popular shade perennials, and many dwarf or small-leaved varieties fit the low-growing criteria. Cultivars like 'Blue Mouse Ears', 'Grootendorst', or 'Pandora's Box' offer striking foliage in shades of blue-green, gold, and white variegation, staying compact and forming attractive mounds. While they produce flower spikes, their primary appeal is their diverse and often substantial leaf forms, which provide texture and colour all season long.
Creating Lush Ground Cover in Shade
For dense, weed-suppressing ground cover in shadier conditions, consider Ajuga reptans (Bugleweed). This vigorous plant spreads via runners, forming a dense carpet of foliage that can be deep green, bronze, or variegated. It produces attractive spikes of blue flowers in late spring. Another reliable option is Vinca minor (Periwinkle), an evergreen ground cover with glossy leaves and delicate blue or white flowers. While it can spread enthusiastically, its trailing habit makes it superb for covering banks or spilling over walls in shady spots.
Epimedium (Barrenwort) is a superb choice for dry shade, a notoriously difficult condition. Its delicate, often heart-shaped leaves form a fine-textured ground cover, and in spring, it offers sprays of intricate, spurred flowers in shades of yellow, pink, or white. Heuchera (Coral Bells) are primarily grown for their sensational foliage, which comes in an astonishing range of colours from deep burgundy and amber to lime green and silver. Many varieties remain low and compact, providing a constant splash of colour to the front of shady borders or containers.
When planting perennials in shady, potentially dry areas, amend the soil generously with compost to improve moisture retention.
Other notable low growing perennials for shade include various Ferns, such as the Ostrich fern (Matteuccia struthiopteris) or Lady fern (Athyrium filix-femina), which unfurl beautiful fronds, or Brunnera macrophylla, known for its heart-shaped leaves (often silver-splashed) and charming blue forget-me-not like flowers. Tiarella (Foamflower) offers attractive, often lobed foliage and airy spikes of foamy white or pink flowers in spring, ideal for woodland garden settings.
Low Growing Perennial Plants: Versatile Garden Uses
The appeal of low growing perennial plants lies not just in their enduring nature but also in their remarkable versatility. They are adaptable to numerous garden roles, from practical ground cover to decorative edging, providing structure and interest throughout the seasons with minimal fuss.
One of their most significant uses is as ground cover. Dense mats of low growing perennials effectively suppress weeds, reducing the need for mulching and manual weeding. This is particularly beneficial on slopes or in large areas where regular maintenance is difficult. Plants like creeping Thyme, Ajuga, or certain Sedums can create a living mulch that beautifies the landscape while performing a functional role.
Edging and Border Foundation
Low growers excel at edging. They create a neat, defined line along pathways, driveways, or the front of garden beds. This visual boundary helps to frame planting schemes, preventing taller plants from encroaching and providing a clean finish. Think of using dwarf varieties of Geranium (cranesbill), Campanula, or compact ornamental grasses to create a living border that remains attractive for a prolonged period.
They also serve as the perfect foundation plants for mixed borders. Positioned at the front, they bridge the gap between the garden edge and taller plants, adding layers of texture and colour. This layering effect enhances the depth and visual richness of the planting. For example, a front border might feature low growing perennials like Astilbe chinensis 'Pumila' in dappled shade, followed by taller perennials and shrubs.
Furthermore, low growing perennials are invaluable for rock gardens, alpine beds, or container plantings. Their compact size and often spreading habits make them suitable for filling crevices, softening rocks, or creating a cascading effect in pots and window boxes. Hardy succulents like Sempervivum (Houseleeks) and low-growing Sedums are classic choices for rockeries, thriving in gritty, well-drained conditions.
When planning a border, group low growing perennials in odd numbers (e.g., 3, 5, or 7) for a more natural and visually appealing arrangement.
The selection of low growing perennial plants allows gardeners to achieve a mature, established look quickly. Their ability to spread and fill space over time means that a well-chosen collection can transform a garden into a tapestry of colour and form, requiring less annual effort than many other planting schemes. Whether used to carpet large areas, define edges, or add subtle detail, their contribution to a balanced and beautiful garden is substantial.
Caring for Your Low Growing Perennials
Once established, low growing perennial plants are typically undemanding, but a few key practices ensure they thrive and maintain their attractive form. Understanding their basic needs regarding soil, water, and light is paramount for their long-term success and to harness their full potential in your garden.
Soil preparation is crucial at planting time. Most low growing perennials, whether for sun or shade, prefer well-drained soil. Amending heavy clay soils with organic matter such as compost or well-rotted manure will improve drainage and aeration. For sandy soils, adding compost helps retain moisture and nutrients. While some, like Sedums and Thymes, tolerate poorer, drier soils, others, such as Hostas and Astilbes, appreciate richer, more moisture-retentive conditions, provided they aren't waterlogged.
Watering and Feeding Regimes
Watering needs vary greatly depending on the plant species, climate, and location. Newly planted perennials require regular watering to help them establish their root systems. Once established, many sun-loving varieties become quite drought-tolerant. However, during prolonged dry spells, even established plants may benefit from supplemental watering. Shade-loving plants often appreciate consistent moisture but can be susceptible to root rot if drainage is poor.
Feeding requirements are generally minimal for low growing perennials. Over-fertilising, especially with high-nitrogen feeds, can lead to lush, floppy growth that is prone to disease and may reduce flowering. A top dressing of compost or a slow-release, balanced fertiliser applied in spring is usually sufficient. For particularly hungry plants like certain Hostas or Astilbes, a light application of fertiliser once established can be beneficial.
Deadhead spent flowers on many varieties to encourage repeat blooming or to prevent self-seeding, depending on your garden goals.
Pruning and maintenance are generally straightforward. In early spring, clear away any dead foliage or debris from the previous year. Some gardeners choose to cut back certain perennials after their main flowering period to encourage a tidier appearance or a second flush of blooms. For evergreen varieties, light trimming can help maintain shape. Dividing overcrowded clumps every few years, particularly for Hostas or Astilbes, can rejuvenate the plants and is a good way to propagate them.
Regular observation is perhaps the most important care aspect. Keep an eye out for pests or diseases, although low growing perennials are often more resistant than their taller counterparts. Early detection and appropriate action, such as improved air circulation or targeted organic treatments, can prevent minor issues from becoming major problems.