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ALLIUM neapolitanum

Image of Allium neapolitanum

Gerald L. Klingaman

Family

Liliaceae

Botanical Name

ALLIUM neapolitanum

Plant Common Name

White Garlic

General Description

Grown for its spring display of showy, airy flowers, this bulbous perennial from southern Europe and northern Africa is one of the most popular onions for ornamental use.

The grass-like leaves and compact, triangular flower stem arise from a small, white, ovoid bulb. The leaves appear in late fall and wither just as the clusters of starry, sweetly fragrant, snow-white flowers open. Both the leaves and the bulb are edible. Papery tan capsules containing black seeds follow the flowers. Plants may self-sow profusely.

Plant the bulbs of this ornamental onion at a depth of three times their width in fertile, well drained soil. This plant likes ample sun and dryish summer conditions, but will accept some shade. Lift and divide the bulbs only when they become crowded. Plant this beauty in groups in the mixed border or culinary garden. Naples garlic is an excellent cut flower. It is a favorite of bees. This plant may be invasive in mild climates, and is listed as a noxious weed in California.

Characteristics

  • AHS Heat Zone

    9 - 1

  • USDA Hardiness Zone

    7 - 9

  • Sunset Zone

    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

  • Height

    8"-20" / 20.3cm - 50.8cm

  • Width

    4"-12" / 10.2cm - 30.5cm

  • Bloom Time

    Spring, Late Spring

  • Native To

    Southern Europe, Mediterranean, Northern Africa

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Upright/Erect

  • Seasonal Interest

    Spring

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White

  • Fruit Color

    Tan

  • Foliage Color (Spring)

    Green

  • Foliage Color (Fall)

    Green

  • Foliage Color (Winter)

    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

    Cutflower, Edible, Herb / Vegetable, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    Sometimes

  • Attracts

    Butterflies

  • Self-Sowing

    Yes