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CROCUS korolkowii

Image of Crocus korolkowii

Russell Stafford

Family

Iridaceae

Botanical Name

CROCUS korolkowii

Plant Common Name

Celandine Crocus

General Description

A shining presence in the garden at one of the dullest and coldest times of year, this variable crocus from the steppes of Central Asia is named after the Russian general who first collected it in the late nineteenth century. It entered gardens shortly thereafter.

Growing from a small bulb-like storage organ known as a corm, this diminutive herbaceous perennial sends up several fragrant, glossy yellow flowers in late winter or early spring, just as the grassy, medium-green leaves emerge. Held on short, erect, stalk-like floral tubes, the six-"petaled" flowers are often marked with gray, bronze, or chocolate on the exteriors of their outer three segments. In bright sun the blooms open wide to reveal their polished yellow interiors with yellow anthers and orange styles. The foliage goes dormant in mid-spring. The corms of this crocus are disk-shaped and relatively large.

Grow this alluring crocus in full sun and fertile, well-drained soil. It does best in dryish summers and chilly winters. Use it at the front of a border or in a rock garden or trough. It will sometimes self-sow. It is also good for forcing in pots. Selection 'Lucky Number' has a maroon throat; 'Golden Nugget' is heavily speckled with bronze.

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

  • Plant Type

    Bulb or Corm or Tuber

  • Sun Exposure

    Full Sun

  • Height

    3"-4" / 7.6cm - 10.2cm

  • Width

    2"-4" / 5.1cm - 10.2cm

  • Bloom Time

    Early Spring, Late Winter

  • Native To

    Central Asia

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant

  • Habit

    Clump-Forming

  • Seasonal Interest

    Spring, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Yellow, Gold, Brown, Chocolate

  • 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

    Alpine, Container, Mixed Border, Rock Garden / Wall, Wildflower

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    Yes