Iris germanica 'Trillion'

Tall Bearded Iris 'Trillion'

Family: Iridaceae (Iris Family)

       

·        Hardiness Zones:  4-8

·        Height: 36 inches

·        Bloom Time: mid May to late May

·        Bloom: yellow standards, darker toward edge, dark violet veining, red violet midrib wash; blended rose brown falls, raspberry violet wash from center to near edge, golden shoulder flush over white, violet streak from beard to edge

·        Light: full sun to part shade

·        Soil: average, well drained, sandy loam best

·        Moisture: average to dry; do not tolerate wet feet (will rot); drought tolerant

·        Use: accent plant in cottage gardens, perennial borders; cut flowers

·        Care: plant shallow, 1/2 soil; do not mulch heavily; cut off spent flowers and remove flowering stem to the ground after blooming; divide every 3-4 years; bearded iris are heavy feeders so plan to fertilize in early spring and again in late summer

·        Concerns: too much moisture causes soft rot problems; iris borer

·        Native to: species native to Eastern Mediterranean

·        Notes: deer and rabbit resistant; salt tolerant

·        Supplier: donated by Madison Area Iris Society

·        Teaching Garden Location & Code: Wet Garden D200

 

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       Dane County UWEX Horticulture Program