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IRIS 'Silverado'

Image of Iris 'Silverado'

Jesse Saylor

Family

Iridaceae

Botanical Name

IRIS 'Silverado'

Plant Common Name

Silverado Iris, Tall Bearded Iris

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Heavily ruffled, white to palest blue-lavender flowers with hints of silver open on the Silverado tall bearded iris in mid-spring. The hybrid 'Silverado' was developed by Schreiner's Iris Gardens in Oregon and released in the late 1980s. It received multiple awards, including the Wister Medal in 1993, the ultimate nod for a tall bearded iris bestowed by the American Iris Society. It also claimed the American Dykes Medal in 1994, the highest accolade awarded by the British Iris Society for American-bred irises.

The distinctively shaped flowers of bearded iris appear on strong stems emerging from fans of light blue-green, sword-shaped foliage. The stems branch and carry numerous plump flower buds. Each blossom comprises three upright petals called “standards” and three drooping tepals (petal-like sepals), referred to as “falls.” All six are white and ruffled but faintly kissed with pale blue or hints of lavender. Fuzzy pale yellow pads called “beards” are located at the base or shoulder of the falls, and give this popular garden perennial its common name. The blooms are pollinated by bees and make striking cut flowers, with each blossom lasting one to three days before shriveling up.

Bearded irises are tough, adaptable perennials which prosper in full sun to light shade and fertile, well-drained soils. Plant them with the tops of their slowly spreading, fleshy rhizomes exposed to the air. In hot summer climates, dappled shade in the afternoon is recommended. After three to five years, lift and divide the rhizomes and replant in late summer if the plants become too large or crowded. These rewarding, long-lived irises deserve a prominent spot in the mixed flower border or foundation bed.

Characteristics

  • AHS Heat Zone

    9 - 1

  • USDA Hardiness Zone

    3 - 9

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    18"-38" / 45.7cm - 96.5cm

  • Width

    18"-25" / 45.7cm - 63.5cm

  • Bloom Time

    Spring

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Spring

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Light Blue, Lavender, Ivory

  • Foliage Color (Spring)

    Light Green, Blue Green

  • Foliage Color (Summer)

    Light Green, Blue Green

  • Foliage Color (Fall)

    Light Green, Blue Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Cutflower, Foundation, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No