Alphabetical Plant Listing

Allium neapolitanum (Ornamental Onion)

White Allium, Allium Cowanii, Naples Garlic, Ornamental Garlic, Bride's onion, Daffodil Garlic, Spring Bulbs, Spring Flowers


Allium neapolitanum (Naples Garlic) is a beautiful, profusely-flowering ornamental onion with sweetly-scented clusters of white, star-shaped flowers forming umbels up to 3-4 in. wide (7-10 cm), atop narrow strap-shaped, mid-green leaves. Blooming in late spring to early summer, this compact, deciduous, bulbous perennial boasts long-lasting blooms and remains ornamental in the garden well into summer. The flowers are very attractive to bees and other pollinating insects, making Naples Garlic a wonderful addition to a wildlife garden.

  • Growing up to 10 - 12 in. high (25 - 30 cm), this beauty naturalizes easily and will come back year after year!
  • Easily grown in rich, sandy to gritty, dry to medium moisture, well-drained soils in full sun. This Allium is drought tolerant.
  • Known for attracting bees, butterflies, ​moths, and other pollinators, but deer ignore it.
  • Stunning in beds and borders, city gardens, cottage gardens, prairies, or containers. For best visual impact, plant in groups (at least 10 to 15 bulbs).
  • Mixes beautifully with other late spring flowering bulbs and creates stunning combinations with pink or white delphiniums, peonies, or irises.
  • To be planted in fall.
  • Keep an eye out for slugs and snails, leaf miner, allium rot, and powdery mildew.
  • Propagate by seed, sowing in containers in a cold frame when just ripe or in the spring, and by division of clumps in spring.
  • Allium neapolitanum is native to the Mediterranean Region from Portugal to Turkey.

Hundreds of Allium species exist, but only a few have made a name for themselves as garden plants. The ornamental onions distinguish themselves by their remarkable diversity in color, inflorescence, and flowering height. Many species bloom in early summer - just after the spring-flowering period and just before the exuberant full bloom of summer. Certain small species are just perfect for a rock garden, and several lend themselves to naturalizing. All species can be used in the border.

Learn How To Plant And Care for Your Spring Flower Bulbs

 To achieve optimum flowering results, it is important to plant the bulbs at the right time.

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Requirements

Hardiness 7 – 9
Heat Zones 7 – 9
Climate Zones 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Bulbs
Plant Family Allium
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early)
Height 1" – 1' (2cm – 30cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 2" (5cm)
Depth 4" (10cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Deer, Drought, Rabbit
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles City and Courtyard, Informal and Cottage, Prairie and Meadow

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dafinchi / 123RF Stock Photo, David Jalda, Walter Erhardt, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 7 – 9
Heat Zones 7 – 9
Climate Zones 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Bulbs
Plant Family Allium
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early)
Height 1" – 1' (2cm – 30cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 2" (5cm)
Depth 4" (10cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Deer, Drought, Rabbit
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles City and Courtyard, Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Allium

Guides with Allium

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Allium neapolitanum (Ornamental Onion)

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