They mass in high Himalayan bogs, cling to arid Greek hillsides or even line the banks of British canals. Although irises are traditionally grown alone, they may also be used in mixed planting and borders. Because they flower for more than six months, from November to June, there is an iris suitable for virtually every part of the garden, whatever the conditions. California chic Crossing various Californian species has produced the evergreen Pacific Coast irises. These have one of the widest colour ranges of all varieties, usually subdued and with a contrasting, veined mark on the falls.
All types require a neutral to acid soil.
Unlike most irises, they flower just as well in partial shade as in full sun. Like most non-bearded forms, the clump gradually expands outwards from the centre and should be divided at regular intervals, such as in late August, discarding the central portion. Iris 'Agnes James' Early flowering, this is a rather upright yellow and white form of Pacific Coast iris. I. 'Broadleigh Carolyn' A classic example of Pacific Coast iris that produces clear blue flowers. Growing tips Planting tips Safety tips Find more varieties of iris .