Sedum ‘Autumn Joy’ and other upright sedum types are well known among gardeners as great plants for adding color to the hot, dry days of late summer and early autumn. But in hot, arid regions where other plants struggle to survive, a number of low-growing sedum types also make excellent ground cover plants.
The Sedum genus contains 400–500 species, often known as sedums, or stonecrops, and is a member of the Crassulaceae family, which is distinguished by plants with thick, succulent leaves. Many of these species are commonly used as garden plants. Stonecrop refers to a group of plants that not only withstand dry, rocky soil but actually thrive in it. Sedums grow to a height of between 2 inches and 3 feet. While some species do well in warmer temperatures, others are only hardy up to USDA hardiness zone 3. Sedums can be annual or perennial, but they are all fleshy succulents. Sedums function so effectively in arid environments because they retain moisture in their leaves. All sedums have flowers, but they are mostly grown for their foliage, which has fascinating green hues that are uncommon in most other plants.
All sedums are incredibly simple to grow and multiply, and the only way to hurt them is to overwater them or place them in soil that is too wet. A single branch or even a leaf inserted into the ground will immediately take root and grow into a new plant with upright variations. Low-growing sedums are excellent ground cover plants because they quickly cover the ground, are not invasive, and have shallow root systems that make them simple to remove.
For your ground cover requirements, here are 10 sedum, or stonecrop, varieties to take into account.
Fun Fact
Many of the plants marketed as sedums are no longer considered sedums in the botanical sense. Plant biologists routinely shift species to new genera, and on occasion they will eject plants from an excessively big genus and create a new one specifically for them. In the horticultural industry, sedums are still frequently used to refer to a group of plants in which some common species have been moved to new genera. For instance, the well-liked sedum “Autumn Joy” is now officially known as Hylotelephium “Autumn Joy.”
Sedum spreads quickly, right?
Sedums can survive in less-than-ideal environments, therefore the author covers a stone wall with a variety of them (identified in chart below).
A creeping sedum may be the ideal plant for you if you want something attractive that can survive with almost complete neglect. Sedums show off where many other plants would be afraid to tread. For instance, they settle in the crevices of a garden wall or pathway, on roofs or the tops of birdhouses with slightly sloping roofs, or even under huge trees where their gigantic roots control the majority of the soil’s moisture. Additionally, they function well in borders, containers, and rock gardens.
Many gardeners have started looking more closely at plants in the genus Sedum as seasonal and protracted droughts become more frequent across the United States. The ground-hugging relatives of Sedum ‘Autumn Joy,’ which is well-known for its late russet blooms, are also gaining popularity.
In my yard, creeping sedums, often called stonecrops, provide endless fascination. Over the course of my many years as a gardener, they rank among the most adaptable, drought-tolerant, and simple-to-grow perennials I’ve ever grown. Sedums really require less work from a gardener as their area grows. These slow-growing plants, which are renowned for their propensity to spread swiftly, prevent weeds from taking root. Since they eventually just fade away, it is not required to deadhead the spent blooms, but it is simple to get rid of old blossoms using a string trimmer. They rarely contract illnesses or pests as long as they aren’t overwatered.
Even the poorest soil may support sedums, and small amounts of soil are really their preferred medium. However, the key to cultivating them is proper drainage. A sedum will be quickly killed by excessive wetness, especially standing water, which will accomplish what no drought can.
Even in the driest conditions, sedums practically never need further water after they are established. Sedums function admirably almost anyplace as long as they receive proper drainage, but they are particularly well suited for gardens in hot, arid regions like the western United States. They can also be found sticking up from boulders or sprouting from only a few inches of scree in cold, alpine environments where they are widespread. For almost every USDA Hardiness Zone, there is at least one Sedum species. The majority of creeping sedums can tolerate little shade but prefer full sun. Native to North America, Sedum ternatum is one sedum that prefers shade and a little bit more moisture than its relatives.
Creeping Sedums
Hardiness: The Northern Hemisphere’s Sedum genus has more than 400 species of succulent annuals, perennials, biennials, subshrubs, and shrubs. Sedums are commonly grown as creeping ground coverings. Each USDA Hardiness Zone has at least one species that can withstand it. Most thrive in Zones 4 through 9. OUTLINE: Five-petaled flowers in shades of yellow, white, or pink lie above mats of succulent leaves that range in color from green to blue-gray to reddish bronze. In the winter, the leaves of evergreen species take on colours of crimson and russet. PROPAGATION: From spring to midsummer, propagate plants by division or seed in the spring or fall. Plant in rock gardens, walls, recesses in walkways, and pots. You may also use it as a border edging or in sweeps on slopes. The majority of creeping sedums like full sun, although they can also tolerate little shade. They prefer medium to poor garden soil that drains well; once they are established, no additional watering is required. They cannot endure any amount of time in standing water.
The author’s favorite sedums
Except for S. ternatum, all of these exceptional sedums prefer full sun or mild shade. The numbers in the chart that come before the name in the image below provide a key.
First S. album
2. S.’s “Murale” album
S. divergens 3.
S. ewersii 4.
S. kamtschaticum (5)
S. kamtschaticum (6)
S. reflexum 7. (S. rupestre)
‘Rose Carpet’ 8.
S. sexangulare 9.
S. spurium, “Fuldaglut” 10.
S. spurium “John Creech,” 11.
S. stenopetalum 12.
S. ternatum 13.
Creeping sedums change from season to season
Creeping sedums are attractive for their dependability and lack of fussiness, but I’m also drawn to them for their succulent leaves, lengthy flowering cycles, and, in some cases, year-round attractiveness in the garden. Sedum blooms often come in little, star-shaped clusters that range in color from white to yellow to purple to pink, and are no larger than an inch in diameter and 4 to 5 inches tall. The carpets of blossoms they generate when planted in large numbers are stunning. Many evergreen sedums, such as Sedum album “Murale” and Sedum stenopetalum, blush to a rich red or bronze color in the fall and even throughout the winter. These stunning contrasts to an otherwise inert landscape last until early spring. They look particularly lovely on a snowy background.
One of the simplest plants to grow from seed, cuttings, or divisions is the sedum. Stem cuttings or divisions will guarantee the maintenance of a plant’s traits once you’ve found one you like because sedums don’t always grow true from seed. Sedums spread quickly, yet they are not invasive. They are easily lifted and transported because of their thin roots. As long as there is adequate drainage, they may survive the winter in most planters and come out of dormancy in the early to midspring.
I complained as I pulled boulders from the cultivated sections of my father’s fields as a young child working on the family farm in northeastern Maryland. In a fitting irony, decades later I still wander the same fields looking for fascinating stones to use as backdrops and accents for my ever-growing collection of sedums.
A few ways to use creeping sedums
Sedums that are resilient make lovely staples. In a section of my rock garden, I utilize a lot of sedums to simulate a cascade. You can blend several sedums, such as the white-flowered Sedum album, the S. grisebachii, and the yellow-flowered Sedum sexangulare (foreground, first photo below) (background). They perform well in a region that can be seen from above.
These year-round, low-maintenance plants are ideal for containers. You won’t need to bring the pots indoors for the winter because creeping sedums do well in containers. Additionally, because of their drought tolerance, you won’t need to locate someone to water them while you are away. Sedums, like the yellow-flowered S. sexangulare (Sempervivum spp. and cvs., Zones 410, second photo below), can be used as underplantings or in combination with other succulents like hens and chicks.
Make stepping stones or rock walls’ sharp edges softer. Within cracks in a stone wall or between stepping stones, sedums, like S. spurium ‘Fuldaglut,’ grow with almost no soil (third photo, below). Use small, mature seedlings, usually referred to as plugs, and combine with some fine gravel and soil.
Utilize a patchwork of sedums to tame a difficult terrain. Maybe you have a spot where gardening and lawn mowing have never worked well together, like a hillside with compacted soil. It might be the perfect place to use creeping sedums, like the pink-flowered S. spurium ‘John Creech’ and others, to intertwine regions of color and texture. The “quilt will vary three times a year as the sedums exhibit the colors of their early-season foliage, then their blossoms, and finally their winter leaves in various tones.
Where should sedum plants be planted?
Sedum, often known as “stone crop flower,” thrives in full to part sun. While creeping varieties can thrive in partial shade, taller hybrids require full light for the finest flowering.
Soil: Sedums prefer a pH range of neutral to slightly alkaline soil that is extremely well-drained. Root and stem rot can result from wet, heavy clay.
Tall growing sedums should be spaced 1 to 2 feet apart. Depending on the kind and how rapidly you want it to fill in an area, space low-growing, creeping sedums 6 to 12 inches apart.
Sedums should be planted in the spring after the risk of frost has passed. Till the end of the summer, you can still plant transplants in northern regions. Planting season is spring or fall in drier regions.
Sedum Care
Sedum plants, often known as stonecrop, do best in full sun, with little to no water, and, most critically, on soil that drains properly. For the flower bed and border, there are larger kinds that reach heights and widths of exceeding two feet. Old favorites for cottage gardens include “Fall Joy. Bright green, gray, and red ground cover kinds that spread swiftly and blossom in the early summer include “Angelina. everything in between as well! They are excellent container plants and do well in most gardens. Sedum plants feature succulent leaves that can be any color—gray, green, purple, blue, or even variegated—and can have anything from tiny needles to larger, fleshier leaves. Bees and butterflies adore them. The nicest part is that they are perennials and return year after year.
Here are a few expert recommendations for growing sedum plants that will look their best:
- Use a well-drained soil at all times. If you’re planting them in containers, make the soil mixture very permeable by adding some shredded bark or sand. Grow them in raised beds and containers if your garden soil is heavy, or amend it.
- Consider how the plants will feel while selecting your containers. To fit the modern vibe these plants exude, think concrete, stone, or simple round bowls if you want to create a succulent garden effect. However, don’t let that deter you from utilizing them in any type of garden—this is a fantastic way to modernize!
- Although they can go without water for extended periods of time, I find that if they are in well-drained soil, they look their best with moderate watering and a little bit of drying time in between.
- They don’t need rich soil or substantial fertilizers. Your plants will really become floppy with lots of stems but few leaves and blossoms if you overfertilize.
- Although the larger kinds will fall over if they don’t get enough sun, they can tolerate some afternoon shadow.
- Speaking of taller types, snip off the tops of the main stems in the spring when the plant is about six inches high. This will make the plant grow more tightly, which will solve the flipping over problem I stated earlier.
Try out various varieties of hen and chicks to plant with your sedums after you have the caring for them down. They are excellent sedum companion plants because they share the same needs for water and fertilizer. These are known as Sempervirens in Latin, so you can be sure you are purchasing the correct succulent. They look fantastic together in containers, as this image from “Sunset” demonstrates.
Sedums die back over the winter?
Sedums typically prefer bare soil, so use minimal fertilizer. The best compost to use is organic. Stretching and flopping might result from chemical fertilizer.
How to Prune Stonecrop Sedum:
Except when plants overgrow their designated space, creeping sedums often do not require pruning. To reduce the height of tall sedums, the tips can be cut in the spring, although this will put off the flowering. In the winter, tall sedums shrink to a rosette at ground level. During the fall and early winter, many gardeners choose to leave the withered stems and blossoms of tall sedums in place because, even when dead, they look lovely when covered in frost. They can be clipped or pulled back once they have been knocked over by snow or ice, though.
Is the sedum ground cover walkable?
Sedum groundcovers are excellent for sunny, exposed areas since they are drought- and heat-resistant. These hardy plants are strong enough to withstand foot activity and require very little maintenance. If you want to cover bigger areas, check for sedum “tiles” that you can spread out like sod or tuck individual plants between pavers. Sedum comes in a wide range of sizes and shapes, but the best groundcovers are the shorter, creeping types. Such kinds as “Dragon’s Blood,” “Tricolor,” “Blue Spruce,” “Kamtschaticum,” or “Fuldaglut” should be sought out. The majority of sedum groundcovers also produce lovely, bee- and butterfly-attractive blooms in the late summer.
Full sun to partial shade, well-drained soil, and drought-tolerant plants are ideal for growing