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A hemisphere of white flowers on a slender stem, Allium Nigrum from Colorblends.

Allium Nigrum

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Allium Nigrum

Allium nigrum

“Nigrum” is Latin for “black,” and yet this allium has white flowers. They are arranged in hemispheres 4 inches across. Borne on slender stems, they float like small clouds over the garden. Bloom follows that of Mount Everest.
Deer Resistant

Note: Alliums are resistant to deer, but rodents such as voles and gophers may eat the bulbs.

Item # 6080
Height 28—32 inches
Sunlight Full (6+ hours sun per day)
Soil Well drained
Flower Color White
Bulb Size 12—14cm
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Bulb size is determined by the circumference around the largest part of the bulb. Colorblends only delivers top size bulbs. Large bulbs produce more or larger flowers than small bulbs.
USDA Zones 4a—7b
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Hardy in USDA zones 4a to 7b in the South or 10b on the West Coast.
Bloom Time Very Late
Bloom times are relative within the spring bulb season, which varies from place to place and year to year. They are intended to help you plan a sequence of bloom from Very Early season to Very Late season. About two weeks separate Early from Mid and Mid from Late. The start and duration of bloom is heavily dependent on the weather. Warm temperatures speed up growth and flowering; cold temperatures slow them down.
i
  • early
  • mid
  • late

$ 0.00

Quantity Price per bulb
25 to 75 $ 0.60
100 to 975 $ 0.45
1,000 to 4,975 $ 0.39
5,000 or more $ 0.37

Bulb Calculator

To find the number of bulbs you need, enter the square footage of the planting area in the box below.

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Planting Instructions

Plant in full sun or light shade and well-drained soil. Sandy soil is ideal. Allium leaves will yellow by the time the flowers open. You can disguise the foliage by planting large alliums among bushy perennials or shrubs, and small alliums among low-growing perennials. The flower heads of large-headed alliums remain attractive even after the color fades. They can be left in the garden or cut and dried for use in indoor arrangements. Species alliums (e.g., siculum, moly) may self-sow.

Depth of Planting Hole 5 inches
Spacing 5 inches apart

Education Center

When to Plant

The short answer is “fall,” but we can be a little more precise.
Read More

Choosing a Planting Site

Success with bulbs depends first and foremost on sunshine and soil that drains well.
Read More