Cedrus deodara var. robusta (Laws.) Carr.
Cedrus deodara 'Gigantea'
A strong-growing conical plant with branchlets stouter, and leaves longer and thicker, than in the typical species. The foliage is very dense, needles dark glaucous-green, 5–6(–8) cm long. In ten years 5 x 2 m. Auders & Spicer (2012) say it was ‘Found in France before 1850’ but Bean (1976a) adds it was ‘first distributed by Lawson’s nursery, Edinburgh, before 1851’. (Bean 1976a; Auders & Spicer 2012).
Jacobson (1996) supports the theory of French origin, and this fits with interesting observations made by Knap (2003) that it is particularly favoured in warm-humid locations, such as along the French and Italian Rivieras, in South Africa, and in parts of South America. He noted it was very extensively planted in Buenos Aires during a visit there in 1986, and confirmed with local nurseries his suspicions that it shares the traits for which it was named with other Deodars grown from low-elevation provenance in the east of its range, where the species extends into the sub-tropical zone, making it particularly useful in warm-humid climates in cultivation. The flip-side of this, of course, is that ‘Robusta’ isn’t so cold-hardy as the typical species. (Knap 2003).