Practical
Plants

Sempervivum tectorum

Houseleek

a perennial evergreen member of the Sempervivum genus in the family Crassulaceae.

No photo available

Taxonomy and growth

Life cycle
perennial
Foliage
evergreen
Height
0.15 m
Spread
0.2 m
Fertility
Insects
Flower type
hermaphrodite
Pollinators
Insects

Uses

Edible uses

This section contains historical Plants For A Future notes marked noncommercial.

Young leaves and shoots - raw[15]. They can be eaten in salads[15]. The juice of the leaves is used as a refreshing drink[3][6].

Product or use
Drink
Plant part
Leaves

Medicinal uses

Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

Houseleek leaves and their juice are used for their cooling and astringent effect, being applied externally to soothe many skin conditions. As with many other remedies that are both astringent and soothing, houseleek simultaneously tightens and softens the skin. The fresh leaves are astringent, diuretic, odontalgic, refrigerant and vulnerary[12][15][5][9][13][14]. They are used as a poultice in much the same way as Aloe vera in the treatment of a wide range of skin diseases, burns, scalds, bites and stings etc and have also been used to get rid of warts and corns[12][8][10][11]. The plant is also sometimes used internally in the treatment of shingles, skin complaints and haemorrhoids, though some care is required since in excess the plant is emetic and purgative[10]. The leaves are harvested as required and used fresh[10].

Product or use
Astringent
Product or use
Diuretic
Product or use
Odontalgic
Product or use
Refrigerant
Product or use
Stings
Product or use
Vulnerary
Product or use
Warts

Environment

Range
Original habitat is obscure but the plant is naturalized in Britain.
Habitat
Roofs, old walls, chimneys and rocks, especially on limestone[15].
Light
full sun
Shade tolerance
no shade
Water
moderate
Hardiness
Zone 4+
Soil textures
sandy, loamy
Soil pH
acid, neutral, alkaline
Drainage
well drained
Tolerances
drought
Tolerates Nutritionally Poor Soil
No
Drought
tolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - surface sow in early spring in a cold frame. It usually germinates in 2 - 6 weeks at 10°c. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in the summer if they have made sufficient growth, otherwise grow them on for a further year in pots before planting them out[K]. Division of offsets in spring or early summer. Larger divisions can be planted out direct into their permanent positions. We have found it best to pot up the smaller divisions and grow them on in a lightly shaded position in a cold frame, planting them out once they are well established in the summer. Plants can also be divided in September but these divisions should be overwintered in a greenhouse. Stem cuttings.

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

Prefers a well-drained gritty soil in full sun[8]. Succeeds in any sandy soil[1], doing well in very little soil in rock crevices, walls, paths etc so long as there is sufficient humus[8]. Established plants are very drought tolerant[12][8] and dislike winter wet[8]. One of the many common names for this plant is rather interesting, but was too long to put in the common name entry earlier in this record. It is 'Welcome home husband, however drunk you be'. The plant is sometimes planted in thatched roofs since it is supposed to give protection against lightning, thunderbolts and fire to any house that it grows on[2]. It is also said to preserve the thatch[12][4]. There is some justification to this belief because the leaves contain a great deal of water and do not burn easily - if there are many of the plants growing on the roof then they will tend to put out the fire before it can take hold properly. Individual rosettes die after flowering, but usually produce a number of offsets that continue to grow[7]. A polymorphic species, it is divided into a number of sub-species by some botanists[8].

References

  1. F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951-00-00

    ↩

  2. Polunin. O. Flowers of Europe - A Field Guide. Oxford University Press 1969-00-00 ISBN 0192176218

    ↩

  3. Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976-00-00

    ↩

  4. Johnson. C. P. The Useful Plants of Great Britain.

    ↩

  5. Triska. Dr. Hamlyn Encyclopaedia of Plants. Hamlyn 1975-00-00 ISBN 0-600-33545-3

    ↩

  6. Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984-00-00 ISBN 3874292169

    ↩

  7. Brickell. C. The RHS Gardener's Encyclopedia of Plants and Flowers Dorling Kindersley Publishers Ltd. 1990-00-00 ISBN 0-86318-386-7

    ↩

  8. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

    ↩1↩2↩3↩4↩5↩6

  9. Lust. J. The Herb Book. Bantam books 1983-00-00 ISBN 0-553-23827-2

    ↩

  10. Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. 1995-00-00 ISBN 0-7513-020-31

    ↩1↩2↩3

  11. Moerman. D. Native American Ethnobotany Timber Press. Oregon. 1998-00-00 ISBN 0-88192-453-9

    ↩

  12. Grieve. A Modern Herbal. Penguin 1984-00-00 ISBN 0-14-046-440-9

    ↩1↩2↩3↩4

  13. Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim 1959-00-00

    ↩

  14. Usher. G. A Dictionary of Plants Used by Man. Constable 1974-00-00 ISBN 0094579202

    ↩

  15. Launert. E. Edible and Medicinal Plants. Hamlyn 1981-00-00 ISBN 0-600-37216-2

    ↩1↩2↩3↩4

Edit this page