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Cupressus arizonica
Cultivation Notes
This article was provided care of 'Plants For A Future'
| Latin Name: | Cupressus arizonica |
| Common Name: | Arizona cypress |
| Family: | Cupressaceae |
| Synonyms: | |
| Known Hazards: | None known |
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Author: Greene.
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| Habit: A Medium Growing Evergreen Tree |
| Habitat: Rocky or gravelly soils of canyons and ravines, 1000 - 2650 metres[229]. |
| Height: 25.0 Width: |
Cultivation Details:
Thrives in a well-drained loamy or peaty soil[11]. Established plants are very tolerant of hot dry conditions and of drought[81]. Tolerates poor sandy soils[81] but is then more subject to insect damage in a succession of dry seasons[11]. Requires a sunny position[81].
A fast-growing and long-lived tree in the wild[229], this species is the hardiest member of the genus[11], though it is still somewhat tender in Britain, at least in the north of the country[11]. It succeeds in most of Britain once it is established[81]. The sub-species A. arizonica glabra. (Sudw.)Little. is a very hardy form, thriving in any soil from chalk to acid sands, this is the form most commonly grown in Britain[200].
Trees are fairly fast-growing in Britain, new growth takes place from late May until mid-September and can reach 60cm per year on young trees[185].
Cultivated as a timber tree in Italy and occasionally in other parts of Europe[50]. The young tree has an attractive pyramidal shape and is widely grown as a Christmas tree in its native range[229].
The seed takes two summers to develop[229]. Mature cones often remain closed on the tree[81], only opening after the heat of a forest fire[200].
Plants are subject to injury by the wind[11, 81].
Trees are notably susceptible to honey fungus[200].
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Propagation Notes:
Seed - sow late winter in a cold frame and only just cover the seed[164]. 3 weeks cold stratification can improve germination[164]. Germinates in 1 - 2 months at 20°c. The seedlings are very subject to damping off so should be kept well-ventilated[113]. Plant out in autumn. The seed can store for several years[113].
Cuttings of almost ripe wood, September in a frost-proof frame[1]. April/May is the best time to take cuttings[113].
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