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The low-growing garden shrub Sedum sieboldii, known as October stonecrop, does not bloom until autumn, when all other plants have already withered. A pretty late summer bloomer is the Sedum kamtschaticum. The upholstery plant, also known as the Kamchatka fat leaf, enchants beds with their yellow star-shaped flowers. The Sedum morganianum, however, is rather something for the room. As a traffic light plant, this snake-stone-hen comes to its best advantage. All three thick-leafed plants are undemanding in their care, flower tirelessly and can survive for a long time without watering.
The long-lived beautiful garden shrub Sedum sieboldii is also called Octoberle or October fat leaf. At the beginning of autumn this succulent shrub starts to bloom. It forms ball-shaped, so-called Trugdolden, with small, pink asterisks. The thick-fleshed leaves are small, roundish and bluish-green, often with a delicate purple margin. In the perennial flowering this sedum species grows in low clumps up to 25 cm high.
Location and ground
The Sedum sieboldii is native to Asia and prefers a rocky, sunny site. It grows best outdoors, here it is best suited as a groundcover. But it can also be used as a greenhouse on green roofs.
In winter it tolerates frost down to -10° C. In the pot, it should get a cool, bright winter quarters.
The soil may be barren and stony, the main thing is loose and permeable. A stony clay soil is well suited. The optimum pH is between 6.5 and 7.5. In contrast to the large garden fat hen, the Sedum sieboldii also looks good in pots. Cultivated as a traffic light plant, the shoots grow down around the pot. The suitable substrate here is a mixture of potting soil and gravel.
In pots, the sieboldii must be poured now and then to penetrate. In the field, this is hardly necessary, in winter not at all.
She also hardly needs any fertilizer. If you like, you can give a cactus fertilizer once a summer.
After flowering, in late October, sometimes even November, the flower shoots are cut back slightly. So the clumps keep a pretty compact shape in the bed, otherwise they can be there over time.
Tip: On the roof, the plants are left to themselves as much as possible. In extremely dry summers, sprinkling with water may be necessary in the evenings.
The easiest way to multiply this robust groundcover by division in the spring. But the propagation of cuttings or leaf cuttings is very simple. The best time to do so is before or after flowering. The separated parts of the plant should dry slightly before they are inserted into the substrate. A special humidity is not required. The earth is only moderately moist.
The Sedum Kamchatsch is a low-growing, thick-leaved perennial. In midsummer, it forms many yellow star flowers on short, 15-20 cm high stems. Small round, notched and thick-fleshed leaves form a calm, light green background. From the Kamchatka fat leaf there are several varieties with different flower colors.
The Sedum Kamchatsch originates from East Asia. Here she loves barren, rocky soil and lots of sun. Also with us she is well suited for the field. She does particularly well rock garden, on dry stone walls or as green roofs. It tolerates heat and survives frosty winters. A sandy-gravelly soil is ideal.
But even in the bucket or balcony box, it can be used as uncomplicated, green decoration. In the pot she prefers a substrate of soil, sand and gravel or Kaktuserde. A full sun location provides vigorous leaves and lush flowering.
No matter which location, the most important thing is the extremely good permeability of the soil to water.
Tip: For the roof planting, a substrate layer of up to 8 cm is suggested. Here you expect about 50 plants for a roof area of 3 square meters.
As you can see at the preferred locations, a special care is as good as not necessary. Only in the bucket must occasionally be poured in long dry periods. Special fertilizers are not required. The potted cultures develop best when they can hold a hibernation. Frost-free, cool and light, without fertilizer and water. In rockeries or in the bed, the groundcover keep their shape when the flowering shoots are cut off after flowering.
The Sedum kamschaticum can be multiplied most easily and successfully by division. For this purpose, parts of the clumps can be tapped in spring or autumn and replanted elsewhere.
The Sedum morganianum, also called snake-fat-hen or monkey-swing, is an attractive succulent species for interiors. As a traffic light plant it forms meter-long silvery green shoots. In summer it blooms at the tips pink to pink-red. The round, thick leaves grow close together on thin shoots. The morganianum are among the few Sedum species that can be cultivated particularly well as a pure houseplant.
The Serpent-Fetthenne is originally from Mexico. Thus, she is accustomed to the sun and, because of her thick, water-storing leaves, does not need water for a long time. However, she is not as hardy as her relatives from Asia. It must be kept in a frost-free, cool place if your bucket is standing or hanging outdoors.
Indoors it comes to a south window in a traffic light vessel to its best advantage. She likes a rather dry air, lots of sun and can shine on windows where most other houseplants would not survive.
A loamy-stony substrate with good drainage is important for the Sedum morganianum. Like most succulents, it is also very sensitive to waterlogging.
Tip: If it receives a lot of sun during its growth phase and gets a cool (5-10° C) rest period in winter, it does not get hungry and gets numerous blooms every year. This is equally true for pot culture in the room, as for the plants on the terrace or balcony.
The Serpent-Fetthenne is more likely to perish by overly generous watering than lack of water. The substrate may occasionally dry out completely. In the growing season between March and October, it is enough to water once a week. If you like, occasionally give some cactus fertilizer in the irrigation water. In the rest period is hardly cast and not fertilized. A last sign of a necessary watering is when the leaves start to crumble.
The Sedum morganianum is thus a perfect plant for those who like to travel again and again. Some caution is required when moving or hanging so that the shoots do not break over the pot edge.
Unsightly, drooping shoots can be cut off before being released in spring.
The Sedum morganianum can best be propagated by shoot or leaf cuttings. The separated parts of the plants should dry for a few days before they are put into the slightly moist soil for rooting.
The topic of pests and diseases can be described equally for the Sedum morganianum, Kamchatka and sieboldii. Most damage is caused by waterlogging and as a result, the roots are damaged. These then become susceptible to fungi and bacteria. The so damaged plants in the pot should be treated immediately:
- Cut already damaged plants and root parts
- thoroughly rid the remaining roots of the old substrate
- put the plant in a clean pot with new substrate
- ensure a good drainage
Schneckenfraß is rather not to be feared. Dry, sandy soils are rather unpopular with the annoying slime, as well as the thick, fleshy leaves.
Whether as a houseplant, on the roof, on the wall or in the bed, all three sedum species enchant with their foliage and their flowers alike. The thick-bodied leaves of the three are also "guilty" because they only need a little watering. Due to their low nutrient requirements to the substrate, they feel comfortable in places where many other, flowering plant species could hardly survive. Propagation is quite easy by seed, cuttings or division possible.