Iris tectorum

Japanese Roof Iris

One of the most spectacular of all Irises, their 5- to 9-inch-wide flowers bloom in purple, pink, white and blue, often marked with a contrasting color. The 2- to 3-foot-tall stems each produce 3 to 15 single, double or peony-like flowers in early to mid-summer. Will not tolerate hot, dry climates. Thrive with lots of moisture and rich, organic soil. Ideal in groups near ponds or in pots submerged in water. Plant divisions in spring. Feed heavily with high nitrogen during growing season for maximum-sized blooms. Divide and replant every 3 to 4 years.
Iris tectorum, Japanese Roof Iris
Though grown in the thatched roofs of Japanese farmhouses, its distinctive leaf fans and delicate frilled flowers are best seen close up, in borders or along a woodland path. Semi-deciduous in warmer climates.

Attributes - Iris tectorum

Plant Type: Perennial

Bloom Season: Late Spring through Early Summer

Flower Color: Blue, Lavender, Purple, White

Foliage: Deciduous

Height: 8 in. to 1 ft.

Width: 1 ft.

Sunlight: Full Sun, Partial Sun

Climate: Zones 4, 5, 6, 7, 8, 9, 10

Notes: Thrives in Acid Soil. Showy Flowers.

Related Plants

Iris douglasiana, Iris ensata, Iris x louisiana, Iris pseudacorus, Iris tectorum 'Alba'
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