Scientific Name
Sempervivum calcareum 'Greenii'
Common Name(s)
Houseleek, Hen and Chicks
Synonym(s)
Sempervivum' Greenii', Sempervivum tectorum 'Greenii', Sempervivum tectorum var. calcareum 'Greenii'
Scientific Classification
Family: Crassulaceae
Subfamily: Sedoideae
Tribe: Sedeae
Subtribe: Sedinae
Genus: Sempervivum
Description
Sempervivum calcareum 'Greenii' is a mat-forming succulent with densely packed rosettes of fleshy, sharply pointed leaves. It can grow up to 6 inches (15 cm) tall and spread 12 inches (30 cm). The rosettes can reach up to 4 inches (10 cm) in diameter. The leaves are gray-green to blue-gray and tipped with deep red or maroon.
The thick flowering stalk arises from the center of the mature rosette and bears pinkish star-shaped flowers.
Hardiness
USDA hardiness zones 4a to 9b: from −30 °F (−34.4 °C) to 30 °F (−1.1 °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 rosette flowers, it will naturally die, but it 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, which will cluster 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 as you repot. Leave the plant dry for a week or so, then begin to water lightly to reduce the risk of root rot.
Learn more at How to Grow and Care for Sempervivum.
Origin
Sempervivum calcareum 'Greenii' is a cultivar of Sempervivum calcareum.
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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