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RUDBECKIA hirta 'Irish Eyes'

Image of Rudbeckia hirta 'Irish Eyes'

Maureen Gilmer

Family

Asteraceae

Botanical Name

RUDBECKIA hirta 'Irish Eyes'

Plant Common Name

Common Black-eyed Susan, Irish Eyes Black-eyed Susan

General Description

The heavy blooming ‘Irish Eyes’ has fantastic bright yellow and gold daisies with emerald green eyes—a far cry from your typical black-eyed Susan. It is easy to grow, great for cutting and offers lots of blooms in the heat of summer.

Common black-eyed Susan, also called gloriosa daisy, is a short-lived perennial that originates from North America. It is wonderfully easy to grow and blooms for an extended period of time. Throughout the summer, the clump-forming, short-lived perennial puts forth, thick, leafy stems topped with colorful flowers that attract pollinators such as bees and butterflies. The pretty daisies are radial, colorful and have green central cones. Deadhead regularly to encourage continued bloom. If the seed heads are left to dry, they will attract seed eating birds.

Rudbeckia hirta grows best in full sun and well-drained, average soil. It is prone to root rot and powdery mildew, so space it well to encourage good air flow and allow its soil to dry between watering. This popular ornamental is at home in wildflower gardens, cutting gardens and mixed borders. Like many black-eyed Susans, it will self-sow gently.

Characteristics

  • AHS Heat Zone

    7 - 1

  • USDA Hardiness Zone

    3 - 7

  • Sunset Zone

    A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    2'-3' / 0.6m - 0.9m

  • Width

    12"-18" / 30.5cm - 45.7cm

  • Bloom Time

    Early Summer, Summer, Late Summer, Early Fall, Fall

  • Native To

    North America

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Pollution

  • Growth Rate

    Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Yellow, Green, Gold

  • Flower Color Modifier

    Bicolor

  • Fruit Color

    Brown, Chocolate

  • Foliage Color (Spring)

    Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Coarse

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Cutflower, Mixed Border, Wildflower

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Birds, Butterflies

  • Self-Sowing

    Yes