A solid option for the late summer and fall garden, Sedum ‘Autumn Joy’ provides foliage interest earlier in the season and then puts on a color display of bronze-red flowers in the fall.
Sedum ‘Autumn Joy’ (Sedum spectabile ‘Autumn Joy’) can spark vibrant fall color in your landscape beds. This paddle-leafed perennial, also known as Hylotelephium ‘Herbstfreude’ (herbstfreude is German for “October delight”), is hard to match for adding seasonal interest. Learn some growing advice for the sedum “Autumn Joy.”
‘Autumn Joy’ sedum stores water in its fleshy, swollen leaves, just like other sedums do. This sedum plant is a variety of succulent related to jade plant and hen-and-chicks (Sempervivum tectorum) (Crassula ovata). All of these plants have water-saving leaves that thrive in arid, low-fertility soil conditions. These water-smart plants may actually be doomed by a garden soil that has been enhanced with compost.
Autumn Joy sedum grows lushly in rich, nutritious soil, producing weak, floppy stems as a result. With this long-season performer, clumps that start the growth season firm and upright but end with bowing and flailing stems are among the frequent experiences gardeners enjoy. Stem flop can be avoided by maintaining light, lean soil, which is one trick. If you’re planting plants into rich garden loam, think about adding a shovel of sand to the planting holes.
In addition, early in the growing season, use hoop or grow-through type poles around plant clumps to keep stems of “Autumn Joy” sedum standing upright. If plants are not in full sun, stems also flop. All sedum plants, including the sedum “Autumn Joy,” adore the sun.
Numerous gardeners engage in spring and summer pruning, which involves cutting back the stems of “Autumn Joy” to encourage plants to grow to a smaller overall height. Additionally, pruning results in shorter stems with more branches. Cut back sedum plants by half in late spring or early summer to prune them (June in most places). Pruning makes “Autumn Joy” sedum flower later, prolonging the fall flower display.
The sedum “Autumn Joy” develops flower buds on its stems in the summer. Long-lasting chartreuse buds give the summer garden some interest. Pink blooms with a six-week garden lifespan are shown as the green buds in the late summer open. The blossoms eventually develop a bronze shade that resembles almost chestnut brown and stands firmly in the snow in the winter. For aesthetic purposes, many gardeners leave flowers in their gardens all winter long.
All different sorts of pollinators are drawn to the attractive flowers. As a late-season nectar source, the sedum “Autumn Joy” is a wonderful addition to a wildlife or butterfly garden. Bees, wasps, and other pollinating insects can land on its blossoms, which offer broad landing surfaces.
Between Zones 3 and 8, “Autumn Joy” sedum thrives. There are numerous additional variations of this autumnal staple. The traditional “Autumn Joy” sedum opens green leaves above light pink blooms. Similar blossoms are found on stems of the “Autumn Charm” sedum (Sedum telephium ‘Autumn Charm’), which has leaves with a white border and green variegation. A better version of “Autumn Joy” is “Autumn Fire” (Sedum spectabile “Autumn Fire”). ‘Autumn Joy’ is gradually being phased out of the market. Autumn Fire has a longer flowering window, bigger flower heads, and stronger stems than Autumn Joy.
When should sedums be reduced in size?
Spring – You should prune the plant back to the earth in the early spring. The new growth will be able to appear as a result. To remove the stems, chop them using pruning shears.
Summer: You might want to prune the plant by halving in May or June. A plant that has become excessively hefty and lanky will benefit from this. Make a clean incision at a point in the stalk that is immediately above a row of leaves. Don’t worry; fresh flowers will grow on the stems that were clipped.
Fall – Anytime is a good time to prune for maintenance. You might occasionally need to remove unhealthy or dead growth. Trim dead stalks back to the healthy portion or the soil’s surface.
Winter: Prevent pruning during the bitterly cold or extremely hot months. The plant is under the most stress at this time.
Should I trim my sedum before the winter?
As soon as the blooms start to fade in the winter, you can trim the sedum back, or you can wait until the ground turns green in the spring. Use pruning shears to cut the entire plant back to the ground, or break the stalks by hand at the ground level. The sedum will reappear from the roots in the spring.
Size & Growth
Autumn Sedum spectabile Joy grows at a moderate rate and keeps expanding until the plant is 24 inches tall.
It is described as hardy to grow in USDA hardiness zones 3 to 9, has a rounded look, with a spread of roughly 18 to 24.
Flowering and Fragrance
Autumn Joy develops flower heads with stunning ornamental rich, dark pink flowers that will either be pink, white, or red in hue during the bloom period from late summer to late fall.
These flowers emerge as a light green, develop pinker petals, and gradually fade to a coppery brown color before the arrival of winter. There is no scent to the blossoms.
Light & Temperature
Since it is not frost-resistant, it is not likely to endure low temperatures of 30 degrees Fahrenheit. When spring returns, though, it will grow again.
Watering and Feeding
Autumn Joy uses a small amount of water. Due to its capacity to store water in its thick leaves, once established, it can withstand drought conditions.
When the soil starts to dry up, the plant will thrive with routine irrigation. Avoid overwatering Autumn Joy plants.
Avoid using high-nitrogen kinds when fertilizing because the nitrogen encourages flimsy growth in plants.
Soil & Transplanting
A healthy Sedum needs soil that drains well. In heavy, soggy soil, it cannot live.
Rich soil should also be avoided because it makes plants develop more slowly and with drooping stems.
This will allow the roots some time to establish themselves before the summer’s intense heat hits.
How should I trim sedum?
Sedum plants respond well to pruning and usually become bushier in the next spring growth spurt. In the early spring, trim the stems down to within an inch (2.5 cm) of the soil using sharp pruners or garden shears. Be careful to stay away from the emerging new growth.
Plants that are pinched will get bushier. If you pinch the new growth off close to the soil, it will grow thicker and form a more compact stem.
Low-light sedum succulents may benefit from pruning in order to develop a stronger stem. Retrim the stem to 6 inches (15.2 cm.). The stalk will thicken and support the flowers when they do bloom, but you will delay any blossoms.
If your sedums are too densely packed on top, remove the blossom and bring it inside so you can enjoy it as a cut bloom. They are delightful both inside and out.
Sedum can be divided in the fall.
To propagate more of these well-liked plants, whether you have little spreading rosettes or tall Autumn Joy stonecrop, you should be able to divide sedum. Sedums flourish in hot, arid regions of the landscape and brighten up places that are difficult to cultivate with color and whimsical form. Sedum separation is a simple task that will immediately boost the availability of plants that are simple to grow. New divisions take little extra work to establish themselves.
In late fall to early spring, perennial plants are typically divided. When to divide sedum will determine how quickly they recover and take root. Before new growth appears in the early spring, it might be challenging to pinpoint the location of the plant because many sedum die back in colder climates. The optimal time to divide the plants is at that point.
Plant division can improve plant health and increase blooming. Every three to four years, divide your sedum. Additionally, some growers advise splitting the plant into two while it is still developing after blooming. Although recovery will take longer, these resilient little succulents should do okay.
What makes sedum and stonecrop different from each other?
Everything depends on how they are arranged. For purposes of identification, the gardener just needs to keep in mind the three classifiers of genus, species, and cultivar. A group of closely related species is referred to as a genus.
Within the genus category, species are a more precise classification that have viable progeny. For instance, Sedum is the genus and glaucophyllum is the species of Appalachian stonecrop that thrives in rocky, alkaline soil, respectively, in the name Sedum glaucophyllum.
The sedum that has been chosen for favorable characteristics is further categorized by a cultivar. On the plant tag, Sedum glaucophullum ‘Dazzleberry,’ so the plant would look burgundy rather than green.
Understanding the distinctions between sedum, succulents, and cactus will be made easier by being aware of these classifications. Succulent is a descriptive term for a plant trait rather than a scientific classification. Succulents may retain water in arid regions or soil conditions because some of their leaves, roots, or stems are thickened and fleshy. There may also be plants with succulent characteristics and a typical plant stem within the same species. Numerous plants have succulent traits that enable them to cope with dry environments. Due to their dry origins and special characteristics, succulents can withstand drought.
Another succulent trait that cactus exhibits is the retention of water within the structure of the plant. Typically, cacti have thorns. Hobbyists who raise cacti and succulents frequently distinguish between them based on whether or not they have thorns rather than strictly on the botanical classification, which is sometimes more difficult to perceive. Members of the Cactaceae family include cacti. Confusion is increased since plants may have adaptations to dry circumstances that make them seem related.
Sedum is a genus of flowering plants that also exhibits the succulent traits of having leaves and stems that can store water. Sedums belong to the family Crassulaceae. Due of its stone-like look, sedum is also known as stonecrop. White flowers are present on Appalachian stonecrop. Sedums, which have 600 species in the Northern Hemisphere, include shrubs, annuals, perennials, and creeping herbs. Succulent traits can be found in both sedum and cacti, despite the fact that they belong to two separate plant families.
It might be wise to look for cultivars with succulent traits if one wants to create a rock garden or grow drought-tolerant plants. These plants have interesting body shapes and are lovely. There are many different kinds of flowering, creeping, low-growing, or towering plants that, once established, require little maintenance.
Sedum leaf blotch
Botrytis is the reason for the brown leaf blotches on Sedum leaves. Gray mold is another name for Sedum leaf blotch.
Both the foliage and the flowers are impacted by this fungus infestation. On the leaves of the afflicted plant, there are dark, circular blemishes.
Both the leaves and the stems have the brown markings. The diseased plant’s blossoms become brown. Early detection of the infection may still allow for recovery.
To get rid of the fungus, use a sulfur- or copper-based fungicide to the afflicted Sedum. Early on in the infection, this is effective.
Discard the sick plant if the infestation is severe and you are unable to treat it.
Powdery Mildew on Sedum
A fungal illness known as powdery mildew causes a white covering to develop on the leaves of Sedum plants.
Sedum leaf surfaces have brown blemishes or patches. If you look closely, this might resemble one of those leaf spot disorders.
On the afflicted Sedum, you can discern chains and threads of white mold. Only these whitish outgrowths are initially visible.
As soon as you notice the white threads on your Sedum, take action. Neem oil can be sprayed on infected Sedum plants to get rid of powdery mildew.
You must give your Sedum more effective treatment if the condition has advanced.
In a gallon of water, combine 1 tablespoon of baking soda and 1/2 a teaspoon of liquid, non-detergent soap.
How should I pinch back my sedum in the fall, Joy?
Sedum are a well-liked perennial in gardens because of their fascinating foliage and eye-catching hues. But when they fall, they frequently flop over and lose their attractiveness.
As soon as your “Autumn Joy” starts to seem unpleasant, it will be too late to rectify the issue. The “bad posture” not only lessens the appeal of your garden, but it also makes it harder for pollinators to reach the prized nectar.
There could be a number of causes for this careless behavior. Too little sun is one of the most frequent causes. Sedum thrive in full sun for at least six hours, typically in the afternoon. The overuse of fertilizer or too rich soil may also be a contributing factor. In the spring and summer, the “overfed” plant grows excessively, and by the fall, the long, lanky stems are unable to sustain heavy flower heads. Move the irritating Sedum and store the fertilizer if one of the aforementioned situations applies to it.
Sedum that is upright (as opposed to creeping or mounding) can be trained to stay shorter and more compact. Simply shorten each stem by a third to a half of its height between June and July 1. If the plant has already produced a few tiny, broccoli-like blossoms, don’t worry; more will come. More blooms will grow on shorter stems that shouldn’t flounder because new shoots will grow below the trimming cut. All the new plants that can be grown from the cuttings are a plus. Put the ends of these into potting soil or sandy loam, let them “cure” (age in the sun for a few days), and then begin a fresh crop.
These easy steps will help you grow Sedum that will look wonderful all season.
Plants marked with a number sign (#) and a number are generally the same size as gallon pots; for example, #2 is equivalent to a 2 gallon pot, #3 to a 3 gallon pot, and so on. These plants are offered for sale in pots.
Plants with a height (such as 5-6′) give an estimate of the plant’s present height.
Plants that are measured in inches (such as 2.5″) are identified by their caliper, or trunk width.
Plants are typically larger when measured by caliper (inches) than when assessed by height (feet).