Acacia cultriformis - Knife-Leaf Wattle
Famille: Leguminosae, Genre: Acacia
Arbuste à feuilles persistantes (4m de haut).
Habitat
- Exposition
- Plein soleil
- Vent
- Tolère un peu de vent
- Humidité
- Sol sec à moyen. Tolère la sécheresse.
- Sol
- Tous sols. Nécessite un sol drainant. Tolère les sols pauvres.
- pH
- Sol acide ou calcaire
- Rusticité
- Zone 8
- Habitat originel
- Rocky ridges[260]. Dry sclerophyll forests and heath[265].
- Origine géographique
- Australia - New South Wales and Queensland.
Autres usages
- A yellow dye is obtained from the flowers [168].
- A green dye is obtained from the seed pods [168].
- Plants are heavily armed with thorns and make a good screen or hedge in warm temperate areas [200].
Culture
- Prefers a well-drained sandy loam and a very sunny position [1].
- Succeeds in dry soils and is drought tolerant .
- Succeeds in any good garden soil that is not excessively limey [11].
- Most species become chlorotic on limey soils [200].
- This species is probably very tender in Britain, but it has been grown outdoors in the mildest parts of Cornwall [11].
- Closely related to A. pravissima [11].
- Ces plantes ont une relation symbiotique avec des bactéries du sol qui forment des nodules sur les racines et fixent l'azote atmosphérique .
- Une partie de cet azote est utilisé par la plante mais une partie est disponible aux autres plantes poussant à proximité [200].
Propagation
- Seed - best sown as soon as it is ripe in a sunny position in a warm greenhouse [1].
- Stored seed should be scarified, pre-soaked for 12 hours in warm water and then sown in a warm greenhouse in March .
- The seed germinates in 3 - 4 weeks at 25°c [133].
- As soon as the seedlings are large enough to handle, prick them out into individual pots and grow them on in a sunny position in the greenhouse for their first winter .
- Plant them out in late spring or early summer, after the last expected frosts, and consider giving them some protection from the cold for their first winter outdoors .
- Cuttings of half-ripe wood with a heel, July/August in individual pots in a frame [78].
- Overwinter in a greenhouse for the first winter and plant out in their permanent positions in late spring or early summer .
- Fair percentage [78].
Calendrier
- En fleur
- 2 - 5
- En feuille
- 1 - 12
Pollinisation
- Type de fleur
- Hermaphrodite (les fleurs ont des organes mâles et femelles)
- Auto-fertile
- Oui
Divers
- Pollution
- Non
- Autres réferences
- [11, 200]
Réferences
[1] 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]).
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
[11] 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.
A classic with a wealth of information on the plants, but poor on pictures.
[78] 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.
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
[133] Growing from Seed. Volume 1. 1987.
Very readable magazine with lots of information on propagation.
Very readable magazine with lots of information on propagation.
[144] Wild Food in Australia. 1976.
A very good pocket guide.
A very good pocket guide.
[168] Nature's Colors - Dyes from Plants. 1974.
A very good and readable book on dyeing.
A very good and readable book on dyeing.
[200] 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.
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
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