Abies spectabilis - Himalayan Fir

Famille: Pinaceae, Genre: Abies
Arbre à croissance lente et à feuilles persistantes (30m de haut).

Habitat

Exposition
Toutes expositions
Humidité
Humidité moyenne.
Sol
Tous sols. Tolère les sols très argileux.
pH
Non calcaire
Rusticité
Zone 7
Habitat originel
Forests in Nepal between 2700 - 3900 metres[243]. Moist open areas[272].
Origine géographique
E. Asia - Himalayas from Afghanistan to Nepal.

Usages médicinaux

  • The leaves are astringent, carminative, expectorant, stomachic and tonic [240].
  • The leaf juice used in the treatment of asthma, bronchitis etc [240, 243, 272].
  • An essential oil obtained from the leaves is used to treat colds, rheumatism and nasal congestion [272].
  • The leaf juice is antiperiodic [240, 243].

Autres usages

  • An essential oil is obtained from the plant, though the report does not give yields or uses [240].
  • The dried leaves, mixed with other ingredients, are used in making incense [272].
  • The wood is used for construction and thatching roofs [272].
  • It is also used for fuel [272].

Culture

  • Prefers a good moist but not water-logged soil [1].
  • Pousse bien dans les sols très argileux .
  • Plants are very shade tolerant, especially when young, but growth is slower in dense shade [81].
  • Intolerant of atmospheric pollution [1].
  • Prefers slightly acid conditions down to a pH of about 5 [200].
  • Prefers growing on a north-facing slope [200].
  • This species is unsatisfactory in south-eastern Britain due to damage by late frosts, trees rarely live more than 40 years and have a poor thin crown [185].
  • Trees grow far better in the milder and moister western side of the country [11].
  • Young trees are very slow to establish because they are often damaged by late frosts, it is best to grow the young trees in high shade to get them through this time [1, 185].
  • Trees should be planted into their permanent positions when they are quite small, between 30 and 90cm in height .
  • Les arbres trop âgés se porteront mal et ne se développeront pas pendant plusieurs années .
  • Cela affecte aussi dramatiquement le dévelopement des racines et la résistance au vent [200].
  • Plants are strongly outbreeding, self-fertilized seed usually grows poorly [200].
  • Ils s'hybrident librement avec les autres membres du genre [200].

Propagation

  • Seed - sow early February in a greenhouse or outdoors in March [78].
  • Germination is often poor, usually taking about 6 - 8 weeks [78].
  • Stratification is said to produce a more even germination so it is probably best to sow the seed in a cold frame as soon as it is ripe in the autumn [80, 113].
  • The seed remains viable for up to 5 years if it is well stored [113].
  • When large enough to handle, prick the seedlings out into individual pots and grow them on for at least their first winter in pots .
  • Plantez les à leurs positions définitives à la fin du printemps ou au début de l'été, après les dernières gelées .
  • Alternatively, if you have sufficient seed, it is possible to sow in an outdoor seedbed .
  • One report says that it is best to grow the seedlings on in the shade at a density of about 550 plants per square metre[78] whilst another report says that they are best grown on in a sunny position [80].

Calendrier

Maturité des graines
10 - 11
En feuille
1 - 12

Pollinisation

Type de fleur
Monoïque (des fleurs mâles et des fleurs femelles peuvent se trouver sur le même plant)
Auto-fertile
Oui
Pollinisateurs
Vent

Divers

Pollution
Non
Autres réferences
[11, 200, 266]

Réferences

[1] F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 1951.
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
[11] Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. 1981.
A classic with a wealth of information on the plants, but poor on pictures.
[78] Sheat. W. G. Propagation of Trees, Shrubs and Conifers. 1948.
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
[80] McMillan-Browse. P. Hardy Woody Plants from Seed. 1985.
Does not deal with many species but it is very comprehensive on those that it does cover. Not for casual reading.
[81] Rushforth. K. Conifers. 1987.
Deals with conifers that can be grown outdoors in Britain. Good notes on cultivation and a few bits about plant uses.
[113] Dirr. M. A. and Heuser. M. W. The Reference Manual of Woody Plant Propagation. 1987.
A very detailed book on propagating trees. Not for the casual reader.
[185] Mitchell. A. F. Conifers in the British Isles. 1975.
A bit out of date (first published in 1972), but an excellent guide to how well the various species of conifers grow in Britain giving locations of trees.
[200] Huxley. A. The New RHS Dictionary of Gardening. 1992. 1992.
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
[240] Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement). 1986.
Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.
[243] Medicinal Plants of Nepal 1993.
Terse details of the medicinal properties of Nepalese plants, including cultivated species and a few imported herbs.
[266] Flora of China 1994.
On-line version of the Flora - an excellent resource giving basic info on habitat and some uses.
[272] Manandhar. N. P. Plants and People of Nepal 2002.
Excellent book, covering over 1,500 species of useful plants from Nepal together with information on the geography and peoples of Nepal. Good descriptions of the plants with terse notes on their uses.

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