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LACTUCA sativa 'Rouge d'Hiver'

Image of Lactuca sativa 'Rouge d'Hiver'

Jessie Keith

Family

Asteraceae

Botanical Name

LACTUCA sativa 'Rouge d'Hiver'

Plant Common Name

Cos Lettuce, Romaine Lettuce

General Description

Long popular in France, this romaine lettuce has light green leaves that blush bronze-red in cool sunny weather.

Heads of 'Rouge d'Hiver' lettuce mature about 60 days after seeds are sown. Leaves can be harvested for "baby greens" at about 30 days. Successive planting every two weeks will prolong the harvest season. The plants' appearance and flavor deteriorate in hot weather.

Romaine (Cos) lettuce is an annual garden vegetable grown for its dense elongated heads of thickly ribbed leaves that are the main ingredient of Caesar’s salads. Large, upright, paddle-shaped outer leaves surround a tight central core of relatively small, pale leaves. In hot weather, the whole leafy clump elongates and "bolts," producing tall branched stems covered with pale yellow flowers followed by fluffy white seedheads. Once plants begin to bolt, pull them or allow them to set seed for collection.

In temperate zones lettuce is favored as a spring and fall crop. In milder climates it is grown as a winter crop. Red-leaved varieties such as 'Rouge d'Hiver' make good seasonal "ornamental edibles" for containers and mixed borders. Full sun, rich well-drained soil and regular water are needed for optimum production and performance.

Characteristics

  • AHS Heat Zone

    12 - 1

  • 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

    Vegetable

  • Sun Exposure

    Full Sun

  • Height

    8"-12" / 20.3cm - 30.5cm

  • Width

    8"-12" / 20.3cm - 30.5cm

  • Bloom Time

    Indeterminate

  • Native To

    Northern Europe, Northern Africa, Asia

Growing Conditions

  • Soil pH

    Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam

  • Growth Rate

    Very Fast

  • Water Requirements

    Average Water

  • Habit

    Rosette/Stemless

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Insignificant

  • Flower Color

    Light Yellow

  • Fruit Color

    Tan, Brown

  • Foliage Color (Spring)

    Red, Green, Light Green, Bronze

  • Foliage Color (Summer)

    Green, Light Green

  • Foliage Color (Fall)

    Red, Green, Light Green, Bronze

  • Foliage Color (Winter)

    Red, Light Green, Bronze

  • Fragrant Flowers

    No

  • 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

    Yes

  • Foliage Texture

    Coarse

  • Foliage Sheen

    Glossy

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Edible, Herb / Vegetable, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    Yes