Attractive, grasslike leaves to 18 inches long are topped by showy flowers in a wide range of colors. Flowers unfurl in May and bloom well into June. Cultivars include ‘Caesar’s Brother’, with rich purple flowers; ‘Eric the Red’, a bright violet-pink Siberian; and ‘Chilled Wine’, a garnet iris suffused with blue.
CareThrives in acidic, heavy, clay soils and loves wet feet. Low maintenance, requiring only feeding and division every few years. Ideal for ponds, streams, or boggy areas. In beds, Siberian iris requires a few extra waterings in a season.
PropagationLift and divide clumps, or separate bulb offsets, and plant immediately in early autumn.
ProblemsIris borer, verbena bud moth, whiteflies, iris weevil, thrips, slugs and snails, aphids, nematodes, bacterial leaf blight and soft rot, crown rot, rhizome rot, leaf spot, rust, viruses, and scorch
Fine Gardening Recommended Products
Gilmour 811673-1001 Sprinkler
Fine Gardening receives a commission for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.
XLUX Soil Moisture Meter
Fine Gardening receives a commission for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.
D&X Garden Sprinkler
Fine Gardening receives a commission for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.
- Genus : Iris
- Plant Height : 1 to 3 feet
- Zones : 3, 4, 5, 6, 7, 8, 9
- Bloom Time : Early Summer, Late Spring, Spring, Summer
- Light : Full Sun to Partial Shade
- Moisture : Medium to Wet
- Maintenance : Moderate
- Plant Type : Perennials
- Flower Color : Pink
- Growth Rate : Slow
- Plant Seasonal Interest : Summer Interest
Plant Characteristics are only available to Fine Gardening members
Sign up for a free trial and get instant access to our complete plant guide as well as our entire collection of articles and videos.