Pseudotsuga menziesii
Ecology
A very tall evergreen tree of plantations and policy woodlands, usually planted in sheltered, well-drained sites; also found in parks and large gardens as a specimen tree. Seed production in Britain is erratic, with long gaps between mast years, but natural regeneration occurs fairly widely. Generally lowland, but upper altitudinal limit unknown.
Status
Trends
P. menziesii was introduced to Britain in 1826, and was recorded from the wild by 1968. It is locally common in forestry and very widespread in estate woodland. A 63 m specimen at Dunkeld, Perthshire, may currently be the tallest tree of any species in Britain. It is under-recorded.
World Distribution
Native of western N. America; very widely planted in Europe and elsewhere.
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Broad Habitats
Light (Ellenberg): 6
Moisture (Ellenberg): 6
Reaction (Ellenberg): 4
Nitrogen (Ellenberg): 4
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.4
July Mean Temperature (Celsius): 15
Annual Precipitation (mm): 1035
Height (cm): 5800
Perennation - primary
Life Form - primary
Woodiness
Clonality - primary
Count of 10km squares in Great Britain: 900
Count of 10km squares in Ireland: 13
Count of 10km squares in the Channel Isles: 0
Weighted Changed Factor: 67
Weighted Change Factor Confidence (90%)
JNCC Designations
Atlas text references
FNAEC (1993b)
.
1982. The Forester's Companion.
Mitchell (1972
1996)
.
1999. The potential for natural regeneration of conifers in Britain. Forestry Commission Bulletin no. 120.