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CROCUS flavus ssp. flavus

Image of Crocus flavus ssp. flavus

International Flower Bulb Centre

Family

Iridaceae

Botanical Name

CROCUS flavus ssp. flavus

Plant Common Name

Yellow Spring Crocus

General Description

Opening its bright sunny flowers during some of the dullest and coldest days of the year, this variable crocus from Turkey and southeastern Europe is best known by its large-flowered hybrid, 'Dutch Yellow.' Numerous other selections and hybrids of Crocus flavus have been introduced since it entered gardens more than 400 years ago. Most of these are now lost.

Growing from a small bulb-like storage organ known as a corm, this diminutive herbaceous perennial sends up one to four fragrant, pale yellow to deep orange-yellow flowers in late winter or early spring, just as the grassy, medium-green leaves emerge. Held on short, upright, stalk-like floral tubes, the starry, six-"petaled" flowers have yellow anthers and yellow to orange-yellow styles. The flowers' exteriors are sometimes streaked or tinted with chocolate-purple at the base. The foliage goes dormant in mid-spring.

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.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    5 - 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

  • Height

    3"-4" / 7.6cm - 10.2cm

  • Width

    2"-4" / 5.1cm - 10.2cm

  • Bloom Time

    Early Spring, Late Winter

  • Native To

    Eastern Europe, Southern Europe, Turkey

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • 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

    Yellow, Light Yellow, 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