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CROCUS 'Blue Bird'

Image of Crocus 'Blue Bird'

International Flower Bulb Centre

Family

Iridaceae

Botanical Name

CROCUS 'Blue Bird'

Plant Common Name

Hybrid Crocus, Spring Crocus

General Description

A welcome sight in late winter, this heirloom crocus opens its cheerful flowers while the last remnants of snow still linger. Introduced in the mid-twentieth century, it is one of many hybrids that trace their ancestry to Crocus chrysanthus and C. biflorus.

Growing from a small bulb-like storage organ known as a corm, this diminutive herbaceous perennial sends up one to four white flowers in winter or early spring, just as the grassy, shiny, dark green leaves emerge. Held singly atop ankle-high, stalk-like floral tubes, the up-facing, goblet-shaped blooms have six "petals" (or segments) in two whorls. The three outer segments have a large blue central blotch and a copper-yellow basal blotch on their exteriors. In bright sun the blooms open wide to reveal yellow anthers, orange stigmas, and a yellow eye. The floral tube is light blue. The foliage goes dormant by late spring.

Grow 'Blue Bird' in friable, well-drained soil in full sun or light shade (when it is in leaf). Plant corms at a depth of two to three times their height in late summer or early fall. Ten or more weeks of near-freezing temperatures are needed to induce flowering. Group this little beauty in rock gardens, mixed borders, alpine troughs, or turfgrass, or force it in pots to help quell winter doldrums.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    3 - 8

  • Sunset Zone

    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

    Bulb or Corm or Tuber

  • Sun Exposure

    Full Sun, Partial Sun, Partial Shade

  • Height

    2"-4" / 5.1cm - 10.2cm

  • Width

    2"-4" / 5.1cm - 10.2cm

  • Bloom Time

    Early Spring, Late Winter

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Spring, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Yellow, Blue

  • Flower Color Modifier

    Multi-Color

  • Foliage Color (Spring)

    Green

  • Foliage Color (Winter)

    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

    Fine

  • Foliage Sheen

    Glossy

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Lawns and Turf, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    Yes