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Iris douglasiana Cultivation | Propagation | General Uses Cultivation Notes: We have found this species to be exceedingly easy to grow in sun or shade in our medium loamy soil that is slightly acid. It does well in very wet as well as very dry years. It has withstood considerable neglect, forming a very dense clump that seems capable of standing up to grass and other vigorous plants[K]. The following notes, however, suggest a wide difference of opinions over the best conditions for this plant[K]. Requires a rich well-drained lime-free soil[42, 71, 79]. Another report says that it succeeds in sun or shade in acid or slightly alkaline soils[129]. Requires a moist soil, growing well by water[1]. This species requires a really well-drained soil, dry rather than damp[233]. It succeeds in dry shade according to another report which also says that it is drought tolerant once established[190]. Easily grown in semi-shade in a woodland soil[42]. Tolerates salt spray[129]. Plants are hardy to about -15°c[187]. A very ornamental plant[1], it hybridizes readily, especially with other Pacific coast Irises[129]. Members of this genus are rarely if ever troubled by browsing deer or rabbits[233]. Resents root disturbance, any moving of the plant is best done in early September[129]. For further Iris douglasiana gardening information |
