Abies grandis (Douglas ex D.Don) Lindl.
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Abies grandis, commonly known as giant fir, grand fir, is a tree.
Abies grandis was already described and the name validly published by David Don based on a prior description by David Douglas. It was John Lindley, however, who reclassified it into todays valid botanical systematics in 1833.
The comparatively long-lived trees have a narrowly conical canopy and reach heights of 25 to 60 metres. The plants reach a width of 10 to 15 metres.
Wood and Bark
The bark is grey.
Abies grandis is evergreen. The dark-green, simple leaves are alternate. They are linear with entire margins. The surface of the leaves is glabrous.
Flowers and Fruits
Abies grandis flowers from May to June. The plants are dioecious, pollination takes places by allogamy through the wind.
The trees produce ornamental brown cones in summer.
Abies grandis is native to British Columbia, the Northwest of the US, the Rocky Mountains and North California.
The trees prefer a shady situation on moderately moist soil. The substrate should be sandy, gritty-sandy, loamy, sandy-loamy or gritty-loamy soil. They tolerate temperatures down to -23Â°C (USDA zone 6).
Tolerance of special soil conditions
- medium: calcareous soil
Suited as specimen plant.
Maintenance and Propagation
Pests and Diseases
- Walter Erhardt, Erich GÃ¶tz, Nils BÃ¶deker, Siegmund Seybold: Der groÃe Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
- Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.