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PlantFiles: Giant Onion, Giant Allium
Allium 'Ambassador'

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Family: Alliaceae
Genus: Allium (AL-ee-um) (Info)
Cultivar: Ambassador

4 vendors have this plant for sale.

8 members have or want this plant for trade.

View this plant in a garden

Category:
Bulbs
Perennials

Height:
36-48 in. (90-120 cm)

Spacing:
12-15 in. (30-38 cm)

Hardiness:
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun

Danger:
N/A

Bloom Color:
Purple

Bloom Time:
Late Spring/Early Summer
Mid Summer

Foliage:
Herbaceous

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Click thumbnail
to view:

By azulverde
Thumbnail #1 of Allium  by azulverde

By sladeofsky
Thumbnail #2 of Allium  by sladeofsky

By sladeofsky
Thumbnail #3 of Allium  by sladeofsky

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive sladeofsky On May 17, 2010, sladeofsky from Louisville, KY (Zone 6b) wrote:

Not only are the flowers giant, they are held on very tall 4' stems that have endured several strong storms without damage in my garden.

Regional...

This plant has been said to grow in the following regions:

Louisville, Kentucky
Cleveland, Ohio
Saint Albans, Vermont



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