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Source:http://plants.usda.gov/java/largeImage?imageID=irte4_001_ahp.tif

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Sun Jiao (Interaccoonale)

❮ ❯

Growing Info

Scarification: Soak in water, let stand in water for 24 hours

Stratification: none required

Germination: surface sow and keep moist, requires light for germination

Other: Germination may be irregular and some seed may lie over 2 years before germination.

Native to: China, Japan

Native

Introduced

Iris tectorumIris tectorum

In Stock: 1.063 lb (Total:1.063lb)

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Iris tectorum

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1.06 lb

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Details

Germination:

98%

Germination test:

Cut (Full Seed)

Purity:

99%

Seeds per lb:

22,641

Quantity:

1.06 lb

Collected in:

China

Crop year:

2026

Min. hardiness zone:

Item ID:

1838317

Characteristics

Growing Info

Scarification: Soak in water, let stand in water for 24 hours

Stratification: none required

Germination: surface sow and keep moist, requires light for germination

Other: Germination may be irregular and some seed may lie over 2 years before germination.

Native to: China, Japan

Native

Introduced

Discover the enchanting beauty of Iris tectorum, commonly known as Roof Iris or Wall Iris, a captivating member of the Iridaceae family. Native to Central and Southwestern China and Japan, this versatile herbaceous perennial thrives in garden zones 4 to 9, bringing a touch of elegance to your outdoor spaces. Standing at 1 to 1.5 feet tall with a similar spread, Roof Iris showcases spectacular, beardless blooms in deep lilac-blue and purple hues, adorned with a striking white crest, making it a showstopper in any garden setting.

Ideally planted in full sun to part shade, Iris tectorum favors organically rich, well-drained soil, flourishing in sheltered locations near west or south-facing walls. Perfect for naturalizing, it spreads rapidly, offering a lush ground cover that dazzles from May through midsummer. This low-maintenance beauty tolerates drought (once established) and deer, and its dense, glossy green foliage adds texture and charm to rock gardens, borders, and even wet areas near ponds and fountains.

Ideal for cut flowers, Roof Iris attracts butterflies while providing ecological benefits and stunning aesthetics. Its historical significance, having been grown on thatched roofs in Japan and China, adds a unique cultural touch to its horticultural allure.