Iris orientalis

Alberto Castillo
Fri, 11 Nov 2005 04:56:41 PST
Dear Angelo:
                  Many thanks for the info on Iris orientalis. Here in very 
rich alkaline soils, year round rains, app. zone 9 b in winter and zone 10 
in summer, they and a number of hybrid Spurias seem to suggest a colder 
origin, as you point out. They sprout in early winter, flower in spring for 
a long period and remain in full growth for the summer and early autumn. As 
pointed out in another message, they hate being divided and flower very 
abundantly when left to become extensive clumps. They also seem impervious 
to long very hot summers.


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