Sedum, also known as stonecrop, is a genus of 400 to 500 species that ranks among the most reliable ground covers for hot, dry sites. Creeping varieties spread quickly into low mats with wide coverage, and most thrive in USDA zones 3 to 9. The foliage carries the show, shifting color through the season while summer blooms add a second layer of interest. The plants stay easy to manage thanks to shallow roots, non-invasive habits, and deer resistance.
Because sedum needs little water and almost no maintenance, it suits slopes, rocky beds, and the strips of ground that turf refuses to grow. Choosing the right plant for the site matters; best ground cover plants for every landscape need sorts species by sun, traffic, and moisture so the planting matches the conditions.
Sedum Varieties That Earn Their Place
The genus splits into creeping types that hug the ground and upright types that form clumps. Creeping varieties cover the most area per plant and stay low, which is what most ground cover jobs need. They spread by rooting along their stems, so a modest number of plugs can fill a large bed within two seasons.
Creeping Varieties for Full Sun
- White sedum (Sedum album): white flowers in summer, green foliage that turns reddish in fall, excellent on thin soils and rocky embankments, slow to establish but tough once settled.
- Angelina (Sedum rupestre ‘Angelina’): needle-like golden foliage, fast spread, zone 3 hardy.
- Dragon’s Blood (Sedum spurium ‘Dragon’s Blood’): red-edged leaves and crimson flowers, one of the quickest to knit together.
- Blue Spruce (Sedum reflexum ‘Blue Spruce’): blue needle foliage that adds texture to borders and rock gardens.
Hardiness and Light Tolerance
Most sedums handle USDA zones 3 to 9 and adapt from full sun to light shade, though dense shade produces leggy growth. In hot inland climates, afternoon shade keeps foliage from scorching. Drought conditions may turn the foliage pinkish, which is a stress response, not a disease, and the color shift fades when water returns.
Establishment follows the same pattern for every variety: clear the site, improve drainage, space plants by mature spread, and water until roots take hold. How to plant ground cover turns bare spots into a lush landscape with steps that apply to sedum beds of any size.
Upright Types for Structure
Upright sedums such as ‘Autumn Joy’, now formally Hylotelephium ‘Autumn Joy’, add height at the back of a border. Plant taxonomists sometimes move species between genera, and several popular sedums have been reassigned to new genera, but the horticultural trade still sells them under the familiar name. These taller types bloom late in the season and hold their dried flower heads into winter.
Ground Cover Around Pools and Patios
Pool decks and patios create the harshest microclimates in a yard: reflected heat, splashed water, and heavy foot traffic at the edges. Sedum tolerates the heat and drought that scorch turf, which makes it a practical filler around hardscape. The low profile also keeps the view lines clean, which matters on decks built to take in a yard.
Matching the Planting to the Pool Type
The planting bed around a pool behaves differently depending on how the pool is built. In-ground pools sit in excavated basins with drainage and coping that shed water, while above-ground pools sit on a leveled ring of ground with splash collecting at the base. The difference between in-ground and above-ground swimming pools changes how much moisture and chlorine reach the surrounding soil, and that drives the ground cover choice.
Planting Between Pavers
Creeping sedum planted in the joints between pavers softens hardscape and tolerates occasional foot traffic. Keep the joints filled with a gritty mix that drains, and expect the sedum to knit over the surface within a season or two. Avoid planting it where pool splash pools constantly, since saturated soil rots the stems. For wide joints, use plugs rather than seed, because the roots establish faster and the finished mat looks even.
Comparing Sedum With Moss and Turf
Sedum is not the only low-maintenance cover, and the best choice depends on light and moisture. Moss wins in deep shade where sedum stretches thin, while sedum wins in full sun where moss dries out. Turf handles the heaviest traffic but asks for the most water, fertilizer, and mowing.
| Factor | Sedum | Moss | Turf grass |
|---|---|---|---|
| Sun | Full sun to part shade | Shade | Full sun |
| Water need | Low | High | High |
| Mowing | None | None | Weekly |
| Traffic tolerance | Light | Very low | Moderate |
| Establishment | Medium | Slow | Fast |
Cost and Maintenance Differences
The maintenance budget changes with the choice. Sedum needs a weeding pass in the first season and almost nothing after that, while turf demands weekly mowing, seasonal fertilizer, and irrigation through dry spells. Moss needs consistent moisture to establish, then mostly shade and acid soil to thrive. On a slope that is hard to reach with a mower, the choice between sedum and turf decides whether the homeowner spends an afternoon every week or an afternoon once a year on that patch of ground.
For shaded properties, moss lawns as a sustainable ground cover alternative cover ground that turf and sedum both fail. The two plants rarely compete for the same sites, which means most yards can use both: sedum on the sunny banks and moss under the tree canopy.
Erosion Control on Slopes
Slopes shed topsoil with every rain, and ground cover is the standard defense. Sedum’s shallow fibrous roots knit the surface layer together while the mat of foliage breaks the force of falling water. On a bare bank, that combination cuts the soil loss that would otherwise end up in gutters and storm drains.
How the Root System Works
The roots stay shallow, which is an advantage on thin rocky banks where deep-rooted plants cannot establish. On steeper grades, combine sedum with deeper-rooted perennials for a two-layer defense. Ground cover flowers for erosion control covers species that stabilize sites with low maintenance, matching root depth to slope angle.
Planting Pattern for Banks
- Grade the slope and remove weeds before planting.
- Space plugs 6 to 12 inches apart, closer on steeper grades.
- Set each plug so the crown sits at soil level.
- Mulch lightly with gravel to hold moisture without smothering.
- Water weekly for the first season, then taper off.
Site Preparation and Layout
Ground cover fails more often from poor site prep than from the wrong plant. Mark the bed, clear the weeds, fix the drainage, and amend the soil before a single plug goes in. The extra hour of preparation saves a season of replanting.
Laying Out the Planting Area
Transfer the bed shape to the ground with stakes, string, and a measuring tape, working from a fixed reference point. The same discipline applies to any layout job; setting out a building plan on the ground explains how surveyors and builders locate corners and levels, and the principles carry over to planting beds.
Soil Work Before Planting
- Remove existing turf and weed roots to a depth of 4 to 6 inches.
- Loosen compacted soil and work in compost or grit where drainage is poor.
- Level low spots so water does not pool at the base of the plants.
- Allow the bed to settle through one rain before planting.
Sedum grows best in soil that drains freely, so heavy clay should be amended before any plugs go in. A simple test confirms the drainage: dig a hole 12 inches deep, fill it with water, and time how long it takes to empty. If the hole still holds water after a few hours, add grit and organic matter or pick a raised bed site instead.
Drainage and Ground Cover Around Structures
The strip of ground next to a foundation or slab is a special case. Water must drain away from the building, and the ground cover must not trap moisture against the wall. Sedum fits the sunny, dry band beside many foundations, but only when the grade is right.
Grade and Drainage First
Finish grades should slope away from the foundation at about 5 percent over the first 10 feet. Ground cover holds the soil in place once the grade is correct, but it cannot fix a bed that pitches toward the house. Slab on ground design explains how moisture and soil behavior shape slab performance, and the same principles govern the planting bed beside it.
Sedum earns its place in sunny, dry, low-traffic spots where turf struggles. Choose the variety for the site, prepare the bed, and let the shallow roots do the erosion control that a bare slope never provides.