Please submit a search term.

Iris tectorum

This plant has poison characteristics. See below.
Common Name(s):
Japanese roof iris, Roof iris, Wall iris
Cultivar(s):
Alba
Categories:
Groundcover, Perennials, Poisonous Plants
Comment:

Space 10 to 16 inches apart; an example of the great diversity of exotic Iris species coming into the nursery industry; Japanese roof iris is useful in wet areas, such as around ponds and fountains

Description:
Perennial herbs from a rhizome or bulb; leaves strap-like, overlapping at base, oriented in one plane; flowers 1-several at the top of a naked stem, 6-parted with 3 outer, spreading or pendent "falls" and 3 inner, erect "standards", variously colored; fruit a capsule. This plant is occasionally damaged by deer
Season:
Summer
Height:
12-18 in.
Flower Color:
Lilac
Hardiness:
USDA Hardiness Zone 4-9
Foliage:
12 in. long, sword-like leaves
Flower:
Deep lilac to bluish purple flowers with brownish violet to lilac streaking in spring
Size:
10 in.
Propagation:
Division in spring or fall
Exposure:
Full sun to partial shade
Soil:
Acidic, moist soil high in organic matter
Regions:
Mountains, Piedmont, Coastal Plain
Origin:
Japan, China
Poison Part:
Rhizomes (thickened roots) and rootstocks, fresh or dry.
Poison Delivery Mode:
Ingestion, dermatitis.
Symptoms:
Nausea, vomiting, abdominal pain, diarrhea, elevated temperature following ingestion; skin irritation upon contact with seeds, rootstock, or cell sap.
Toxic Principle:
Irisin, iridin, or irisine.
Severity:
CAUSES ONLY LOW TOXICITY IF EATEN. SKIN IRRITATION MINOR, OR LASTING ONLY FOR A FEW MINUTES.
Found in:
Houseplant or interiorscape; forest or natural area in native woodlands, marshes, and shallow water; landscape in flower gardens
Growth Rate:
Slow to moderate
Tags:
pink, cpp, summer, blue, poisonous, sun, purple, perennial, groundcover, partial shade, deer resistant, lavender

NCCES plant id: 302

Iris tectorum Iris tectorum
Lindley Ashline, CC BY-NC-2.0
Iris tectorum Iris tectorum
M. Fletcher, CC BY-NC-2.0
Iris tectorum Flowers and Leaves
Photo by Jason Sturner, CC BY - 2.0