Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Green Blue | Gold Orange | Green Blue | |
---|---|---|---|---|
Summer | Green Blue | Gold Orange | Green Blue | |
Autumn | Green Blue | |||
Winter |
Position
- Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
ShelteredDrought resistance
Yes Hardiness
H7Botanical details
- Family
- Iridaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Potentially harmful
- Harmful if eaten. Wear gloves and other protective equipment when handling. Pets: Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- Genus
Iris may be rhizomatous or bulbous perennials, with narrow leaves and erect stems bearing flowers with 3 large spreading or pendent fall petals, alternating with 3 erect, often smaller, standard petals, in late winter, spring or early summer
- Name status
Accepted
- Horticultural Group
- Standard Dwarf Bearded irises are rhizomatous perennials 20-40cm tall, with flowers 5-7cm across, bearded on the falls, in late spring or early summer
How to grow
Cultivation
Plant in full sun in well-drained soil, with the top surfaces of the rhizomes exposed so that they get baked in summer sun, which encourages flowering
Propagation
Propagate by division of rhizomes after flowering, from midsummer to late summer; for more advice, see dividing irises
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Cut flowers
- Flower borders and beds
- Wall side borders
Pruning
Cut down old flower stems after flowering, and remove any dying foliage in autumn
Pests
Diseases
May be susceptible to aphid-borne viruses, bacterial soft rot and grey moulds; see Iris diseases
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.