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IRIS 'Study in Black'

Image of Iris 'Study in Black'

Jesse Saylor

Family

Iridaceae

Botanical Name

IRIS 'Study in Black'

Plant Common Name

Study in Black Iris, Tall Bearded Iris

Special Notice

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

General Description

Revel in the blackish bronze-purple flowers in early to mid-spring on the tall stems of this bearded iris cultivar. 'Study in Black' was a hybrid bred by Gordon Plough and released in the late 1960s.

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.” On 'Study in Black', the flowers are a blackened bronze-purple, often looking chocolate-black. Fuzzy lavender to blue pads called “beards” are located at the base or shoulder of the falls, and give this popular garden perennial its common name. These 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. 'Study in Black' will look stunning and darker when juxtaposing white flowers on nearby perennials.

Characteristics

  • AHS Heat Zone

    9 - 1

  • USDA Hardiness Zone

    3 - 9

  • Sunset Zone

    H1, 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"-36" / 45.7cm - 91.4cm

  • Width

    18"-24" / 45.7cm - 61.0cm

  • 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

    Purple, Bronze, Chocolate, Black

  • Flower Color Modifier

    Bicolor

  • 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