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About Iris germanica division (Iris germanica bearded)

Iris germanica division – How to divide irises

Lift and divide rhizomatous bearded irises every three to five years

This is ideally carried out six weeks after flowering, to give sufficient time for the plants to produce new growth for the following season before they enter winter dormancy.

Cut away each fan of leaves from the clump, using a sharp knife. Each fan should have a portion of young rhizome (up to 15cm/6in long for tall bearded irises, smaller for miniature tall bearded irises)

Select the largest fans with the healthiest rhizomes

Discard smaller fans and old, withered looking rhizomes

Shorten the leaves to about 15cm (6in) above the rhizome and trim the roots to shorten themFamily: Iridaceae