Create Your Garden

Iris cristata (Dwarf Crested Iris)

Dwarf Crested Iris, Lady's Calamus

Iris cristata, Dwarf Crested Iris, Lady's Calamus, Lavender Flowers, Bicolor Iris, Bicolor Flowers, Groundcover Iris
Iris cristata, Dwarf Crested Iris, Lady's Calamus, Lavender Flowers, Bicolor Iris, Bicolor Flowers, Groundcover Iris
Iris cristata, Dwarf Crested Iris, Lady's Calamus, Lavender Flowers, Bicolor Iris, Bicolor Flowers, Groundcover Iris

Iris cristata (Dwarf Crested Iris) is a low-growing perennial forming a quickly spreading mat of narrow, sword-shaped, bright green, pointed leaves. Myriads of small, light violet-blue flowers, up to 1.5 in. across (4 cm), adorned with a conspicuous white splotch and gold crest on each fall, appear in mid-spring, just above the foliage tips in perfect display. They carpet the ground and create a spectacular drift of blue color. This rhizomatous perennial is an excellent plant for the shaded rock garden, perennial border, or woodland garden. May also be used as a seasonal ground cover.

  • Grows up to 6-9 in. tall (15-22 cm) and 6-12 in. wide (15-30 cm). Spreads quickly to form dense colonies in satisfactory growing conditions.
  • Performs best in light shade in moist, humus-rich soils. Plants will tolerate some sun if the soil is consistently moist. Blooms well even in dry shade.
  • A welcomed addition to beds and borders, wall-side borders, coastal gardens, city gardens, cottage gardens, rock gardens, or containers.
  • Deer resistant.
  • No serious insect or disease issues but watch for slugs and snails.
  • Remove any dying foliage in autumn, old flower stems can be cut down after flowering.
  • Propagate by division of rhizomes from midsummer to early autumn
  • All parts may cause discomfort if ingested. Wear gloves and other protective equipment when handling.
  • Toxic to dogs, toxic to cats, toxic to horses.
  • Native to the southeastern United States.

Irises: How to Grow and Care with Success


Want to learn how to grow and care for irises like a pro? Follow these simple steps and enjoy the beauty of these striking plants

Requirements

Hardiness 4 - 10
Heat Zones 1 - 10
Climate Zones 2, 2B, 3, 4, 5, 6
Plant Type Perennials
Plant Family Iridaceae
Genus Iris other species
Common names Dwarf Crested Iris, Iris
Exposure Partial Sun
Season of Interest Spring (Mid),
Height 6" - 9" (15cm - 23cm)
Spread 6" - 1' (15cm - 30cm)
Spacing 6" - 12" (15cm - 30cm)
Maintenance Low
Water Needs Low, Average
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive, Well-Drained
Characteristics Showy
Native Plants United States, Pennsylvania, Massachusetts, Maryland, Northeast, Midwest, Southeast, Southwest, Missouri, Indiana, Ohio, Illinois, Alabama, Georgia, Kentucky, Arkansas, Tennessee, West Virginia, South Carolina, North Carolina, Mississippi, Virginia, Oklahoma
Tolerance Drought, Deer, Dry Soil
Garden Uses Beds And Borders, Ground Covers, Patio And Containers, Wall-Side Borders
Garden Styles Coastal Garden, City and Courtyard, Informal and Cottage, Gravel and Rock Garden
How Many Plants
Do I Need?
Guides with
Iris Species
Not sure which Iris Species to pick?
Compare Now

Alternative Plants to Consider

Iris virginica var. shrevei (Southern Blue Flag)
Iris latifolia (English Iris)
Iris lactea (Milky Iris)
Iris chrysographes (Gold-Marked Iris)
Iris macrosiphon (Long Tubed Iris)
Iris hexagona (Dixie Iris)

Recommended Companion Plants

Athyrium filix-femina (Lady Fern)
Phlox divaricata (Woodland Phlox)
Aquilegia canadensis (Canadian Columbine)

Find In One of Our Guides or Gardens

Native Plant Alternatives to Iris pseudacorus (Yellow Iris)
Irises: How to Grow and Care with Success
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
Buy Plants

Requirements

Hardiness 4 - 10
Heat Zones 1 - 10
Climate Zones 2, 2B, 3, 4, 5, 6
Plant Type Perennials
Plant Family Iridaceae
Genus Iris other species
Common names Dwarf Crested Iris, Iris
Exposure Partial Sun
Season of Interest Spring (Mid),
Height 6" - 9" (15cm - 23cm)
Spread 6" - 1' (15cm - 30cm)
Spacing 6" - 12" (15cm - 30cm)
Maintenance Low
Water Needs Low, Average
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive, Well-Drained
Characteristics Showy
Native Plants United States, Pennsylvania, Massachusetts, Maryland, Northeast, Midwest, Southeast, Southwest, Missouri, Indiana, Ohio, Illinois, Alabama, Georgia, Kentucky, Arkansas, Tennessee, West Virginia, South Carolina, North Carolina, Mississippi, Virginia, Oklahoma
Tolerance Drought, Deer, Dry Soil
Garden Uses Beds And Borders, Ground Covers, Patio And Containers, Wall-Side Borders
Garden Styles Coastal Garden, City and Courtyard, Informal and Cottage, Gravel and Rock Garden
How Many Plants
Do I Need?
Guides with
Iris Species
Not sure which Iris Species to pick?
Compare Now

Gardening Ideas

Plant Calculator

How many Iris cristata (Dwarf Crested Iris) do I need for my garden?

Input your garden space dimensions

Your Shopping List

Plant Quantity
Iris cristata (Dwarf Crested Iris) N/A Buy Plants

Please Login to Proceed

You Have Reached The Free Limit, Please Subscribe to Proceed

Subscribe to Gardenia

To create additional collections, you must be a paid member of Gardenia
  • Add as many plants as you wish
  • Create and save up to 25 garden collections
Become a Member

Plant Added Successfully

You have Reached Your Limit

To add more plants, you must be a paid member of our site Become a Member

Update Your Credit
Card Information

Cancel

Create a New Collection

Sign Up to Our Newsletter

    You have been subscribed successfully

    Join Gardenia.net

    Create a membership account to save your garden designs and to view them on any device.

    Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

    Join now and start creating your dream garden!

    Join Gardenia.net

    Create a membership account to save your garden designs and to view them on any device.

    Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

    Join now and start creating your dream garden!

    Find your Hardiness Zone

    Find your Heat Zone

    Find your Climate Zone