Scientific Name
Sempervivum calcareum 'Guillaumes'
Accepted Scientific Name
Sempervivum calcareum Jord.
Common Name(s)
Houseleek, Hen and Chicks
Scientific Classification
Family: Crassulaceae
Subfamily: Sedoideae
Tribe: Sedeae
Subtribe: Sedinae
Genus: Sempervivum
Origin
This succulent is a form of Sempervivum calcareum from Guillaumes, a commune in the Alpes-Maritimes department in southeastern France.
Description
Sempervivum calcareum 'Guillaumes' is an attractive succulent that forms rosettes of fleshy, green leaves suffused red-brown starting at the tip and spreading down the leaf as they age. The rosettes are smaller than the type form.
Flowers are pale green and appear in clusters on long stout stems in summer. Flowers are pale pink to greenish-white, star-shaped, and appear in clusters on leafy, erect, up to 8 inches (20 cm) tall stems in summer.
Hardiness
USDA hardiness zone 5a to 8b: from −20 °F (−28.9 °C) to 20 °F (−6.7 °C).
How to Grow and Care
Sempervivums are not difficult to grow, provided they are not waterlogged and killed from excess watering. They can be easily grown outdoors and in containers, and they earned the name "Houseleeks" from their tendency to root on the roofs of houses. After the mother plant flowers, it will naturally die, but the plant has likely produced many offsets that will continue to grow by this time. These are excellent for cold windows. Sempervivum earned their popular name, "Hen and Chicks," from their growth habit. The mother plant, or hen, sends off numerous offsets clustered around her base like chicks. These offsets can be easily repotted, or the plants can be left to form a clumping mat.
Repot as needed, preferably during the warm season. To repot a succulent, ensure the soil is dry before repotting, then gently remove the pot. Knock away the old soil from the roots, removing any rotted or dead roots. Treat any cuts with a fungicide. Place the plant in its new pot and backfill it with potting soil, spreading the roots out as you repot. Leave the plant dry for a week or so, then begin to water lightly to reduce the risk of root rot.
See more at How to Grow and Care for Sempervivum.
Links
- Back to genus Sempervivum
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus
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