How to identify Douglas Iris (Iris douglasiana)

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Douglas Iris

How to identify Douglas Iris (Iris douglasiana)

Douglas Iris forms dense clumps of graceful, arching foliage roughly 18 inches (45 cm) tall and spreading up to 36 inches (91 cm) wide. The leaves maintain their presence year-round. From spring to early summer, douglas Iris showcases a spectacular display of pale blue flowers, each bloom held aloft on either solitary or branched stalks that may reach 1 to 2 feet in height (30 to 60 cm). The flower's individual coloration ranges from lavender-blue to almost white, with a characteristic form typical of the Iris family.

Lifespan: Perennial

Plant Type: Herb

Leaf Type: Evergreen

Quickly Identify Douglas Iris

1

Dense clumps of arching foliage, 18 inches (45 cm) tall.

2

Year-round presence of leaves.

3

Pale blue flowers, 1-2 feet (30-60 cm) tall.

4

Flower color ranges from lavender-blue to almost white.

5

Characteristic Iris family flower form.

Douglas Iris

Douglas Iris

Douglas Iris

Douglas Iris

Douglas Iris

Douglas Iris and Their Similar Plants

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Yellow flag vs. Douglas Iris: What's The Difference?

Yellow flag (Iris pseudacorus) is a flowering perennial plant native to Europe, Asia, and Africa. In temperate climates throughout the globe, yellow flag is cultivated as an ornamental plant. Yellow flag contains the toxin tannin and can irritate the skin. It's considered and invasive aquatic species.

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Blackberry lily vs. Douglas Iris: What's The Difference?

Blackberry lily (Iris domestica) is a herbaceous perennial that grows from 61 to 91 cm tall. The leaves of the plant grow in fans, similar to those of a gladiolus. It is also called a leopard lily due to its big orange flowers. The blooms are showy and will blossom from summer to early fall. It needs full sun and well-drained soil for optimal growth.

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Northern blue flag iris vs. Douglas Iris: What's The Difference?

The northern blue flag iris is considered a wetland species, which means it plants well near pond or lake edges, in water meadows, and near other water features. It can tolerate being in standing water that is less than 15 cm deep and can be completely submerged for a short time. The northern blue flag iris is a flowering herbaceous perennial plant that grows 10 to 79 cm high.

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Siberian iris vs. Douglas Iris: What's The Difference?

Siberian iris is an exceptional beauty with its bluish-purple flower petals and long, strappy green foliage. Historically, this flower symbolized the royal families and monarchs. Despite its elegance, this plant possesses low toxicity characteristics that plant enthusiasts should nevertheless be mindful of.

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Roast-beef plant vs. Douglas Iris: What's The Difference?

Roast-beef plant (Iris foetidissima), also known as stinking iris, is a perennial flowering plant of the iris family. Native to Europe, it got its common name for the smell of its leaves when crushed. Although the flower is pretty, the plant's red berry clusters are considered the most attractive aspect of the plant.

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Japanese Iris vs. Douglas Iris: What's The Difference?

The japanese Iris is a flowering perennial aquatic plant in purple, blue, and white. Native to parts of Asia, it is easy to care for and grows well in wet conditions. This plant thrives in ponds and water features in full sun to partial shade.

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Netted iris vs. Douglas Iris: What's The Difference?

Iris reticulata is prized as a hardy, early bloomer by many gardeners in the world. Native to Turkey, Russia, and the Caucasus, but cultivated worldwide, this dwarf netted iris blooms in late winter or early spring. The delicate-looking flowers of netted iris sometimes even emerge from the snow, but they're so hardy that they remain intact in snow and frost.

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Butterfly-flower vs. Douglas Iris: What's The Difference?

Native to China and Japan, butterfly-flower, or Iris japonica, is commonly cultivated in gardens in both the United States and the United Kingdom. This beautiful flowering perennial is considered poisonous, and even handling the plant can cause skin irritation.

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Key Facts About Douglas Iris

Attributes of Douglas Iris

Plant Type

Herb

Plant Height

15 cm to 91 cm

Spread

50 cm

Leaf Color

Green

Blue

Flower Size

8 cm

Flower Color

Purple

Blue

Stem Color

Green

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Scientific Classification of Douglas Iris

Phylum

Vascular plants

Class

Order

Asparagus and allies

Family

Genus

Species

Douglas Iris (Iris douglasiana)

Learn More About the Douglas Iris

Learn More About the Douglas Iris

A Comprehensive Guide to Douglas Iris How to Grow and Care for Douglas Iris