How to Divide Bearded Irises

Division is the easiest method of making new plants.

Bearded Iris Most Common Rhizomatic Plant

Bearded Iris Most Common Rhizomatic Plant

©2011, Dorling Kindersley Limited

2011, Dorling Kindersley Limited

From: DK Books - Learn to Garden

Step 1: Split and Trim

Dividing Irises

Dividing Irises

©2008, Dorling Kindersley Limited

2008, Dorling Kindersley Limited

Split the rhizomes into sections, so that each has healthy shoots and good roots. Trim off the older sections farthest from the leaves with a knife, and dust cut surfaces with fungicide.

Step 2: Cut Back Leaves

Cut Back Leaves

Cut Back Leaves

©2008, Dorling Kindersley Limited

2008, Dorling Kindersley Limited

Trim long roots back by one-third, and cut leaves to about 6 in (15 cm). This will reduce rocking by the wind, keeping the replanted section stable until it develops strong, anchoring roots. Replant the sections at the same depth as before in well-prepared ground, spaced about 5 in (12 cm) apart. Firm in, level, and water well.

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