Sempervivum ciliosum, ciliated houseleek

Sempervivum ciliosum

Ciliated houseleek as ground cover
Ciliated houseleek as ground coverCredit: Anders Sandberg
Ciliated houseleek in the wild
Ciliated houseleek in the wildCredit: Michael Wolf
Sempervivum ciliosum in flower
Sempervivum ciliosum in flowerCredit: Mustapha Orhon
Sempervivum ciliosum flower
Sempervivum ciliosum flowerCredit: Ghislain118
Exposures
Sun, Half-shade
Hardiness (USDA)
7b (-15°C ≤ T° < -12.2°C)
Lifecycle
Perennial
Foliage
Evergreen
Family
Crassulaceae
Genus
Houseleek Sempervivum
Species
Ciliated houseleek Sempervivum ciliosum
Contents
The Crassulaceae family is found all over the world. They grow in places ranging from the African deserts to the high plateaus of southern China. In Europe, in the Balkan Mountains, Sempervivum ciliosum thrives in the harshest of environments.

How can you identify Sempervivum ciliosum, the ciliate houseleek?

Sempervivum ciliosum is a succulent plant with a creeping, compact growth habit. It does not grow taller than ten centimeters.

Its thick, long roots allow it to survive in the most inhospitable places. They make their way through rocks, into cracks in walls, or along rocky cliffs.

Ciliate houseleek has no stem. Its leaves form a globular rosette one to five centimeters wide. The color of the leaf blades varies depending on the cultivar. In the botanical variety, they are green. However, there are hybrids with purple, crimson, or blue-green foliage. Regardless of their color, the leaves are always covered with fine gray hairs.

Sempervivum ciliosum blooms in the summer. While the flowers of cobweb houseleek and the Mountain Houseleek are pink, those of the ciliate houseleek are yellow. They bloom in a corymb at the top of a 10-centimeter flower stalk. The plant dies after flowering. But before it does, it produces numerous offshoots.

Houseleek is said to have therapeutic properties. It is reportedly used to treat skin problems or burns. However, some scientists consider the plant toxic if ingested. Keep it out of reach of pets and young children.

Our care tips

The Sempervivum ciliosum These are easy-to-care-for outdoor plants. They just need a sunny spot and a well-draining substrate. They can thrive on a rooftop, in a crack in a low wall, or in a rock garden. You can also grow them in pots. There's just one rule to follow: don't mix them with other species, which might take over.

WateringWatering

Make sure the soil is completely dry before watering. Pour room-temperature water over the potting soil, without wetting the foliage.

Do not leave standing water in the cup.

MistingMisting

The Sempervivum ciliosum grow in arid regions and do not like humidity. No need to spray them.

RepottingRepotting

Every year in the spring, repot your Sempervivum ciliosum to give it more space.
Obtain a pierced terracotta pot. Line the bottom with a layer of clay balls or gravel. This way, in the event of over-watering, your plant won't get its feet wet.

Add a mixture of garden soil (50%) and sand or pozzolan (50%). Plant your Ciliate houseleek in the center. Tamp and water to remove air bubbles.

PrunePrune

Remove dried leaf rosettes after flowering.

PlantingPlanting

When the risk of frost has passed, it's time to plant.
Choose a sunny, well-drained spot, such as the top of a slope. Loosen the soil by raking it. If your soil is compact, add sand, crushed pozzolan, or gravel to lighten it.

Dig a hole the size of the root ball and plant your Ciliate houseleek. Space the plants at least 20 centimeters apart to give the offshoots room to grow. Do not plant other, larger varieties nearby. They may cast shade and take over the entire space.

Pack down the soil and water to help the plant establish roots.

Taking cuttingsTaking cuttings

Propagation by cuttings is carried out during the strong growth phase, generally in spring and early summer.
Locate a young shoot and carefully separate it from the mother plant. Take care to remove its roots without damaging the rest of the root system.
Obtain a perforated pot. Add a layer of clay balls or gravel to the bottom for drainage.

Mix equal parts garden soil and sand or crushed pozzolan. Plant sempervivum ciliosum in the center. Tamp gently and water generously to encourage rooting.

Disease / Threat

Information

Lifecycle
Perennial
Foliage
Evergreen
Exposures
SunHalf-shade
Planting methods
Open groundIn potsPlanter
Tags
BeginnerFloweryHard to killHardyToxic
Origins
Eastern EuropeSouthern Europe
Hardiness (USDA)
7b (-15°C ≤ T° < -12.2°C)
Leaf colors
Dark greenLight greenBlueVioletPurpleGreen-gray
Flower color
Yellow

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