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ALLIUM cepa 'Yellow Stuttgarter'

Image of Allium cepa 'Yellow Stuttgarter'

Gerald L. Klingaman

Family

Liliaceae

Botanical Name

ALLIUM cepa 'Yellow Stuttgarter'

Plant Common Name

Garden Onion, Yellow Onion

General Description

The garden onion is a biennial widely grown as a vegetable. Pale hollow green leaves and long flower stems that sometimes have bulbils rather than flowers arise from bulbs with papery outer coverings. The cultivar ‘Yellow Stuttgarter’ is a deep yellow onion with pale yellow flesh. It has a strong flavor when eaten raw, but cooking reduces its potency.

Garden onions are categorized according to the day length at which they form bulbs. This cultivar requires the long days (14 hours or more) of the upper latitudes. It also stores well.

Garden onions require full sun and regular water. Grow them in loose, rich, well-drained soil. If you are planting onions from sets, or small bulbs, plant the bulbs just below the surface, with the neck showing. When most of the leaves are in decline, dig the bulbs and dry them in a shady well-ventilated place for several days. 'Yellow Stuttgarter’ matures early and is ready to harvest 120 days after sowing.

Characteristics

  • 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, Partial Sun

  • Height

    2'-3' / 0.6m - 0.9m

  • Width

    4"-12" / 10.2cm - 30.5cm

  • Bloom Time

    Late Spring, Early Summer

  • Native To

    World/Pandemic, North America, Europe, Russia/Siberia, Northern Africa, Asia, India

Growing Conditions

  • Soil pH

    Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

  • Habit

    Upright/Erect

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Yellow Green

  • Foliage Color (Spring)

    Green, Gray Green

  • Foliage Color (Summer)

    Green, Gray Green

  • Foliage Color (Fall)

    Green, Gray Green, Yellow Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    Yes

  • Bark or Stem Fragrant

    Yes

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Edible, Herb / Vegetable

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No