Allium, Egyptian Tree Onion, Walking Onion, Topset Onion 'Heritage White'

Alliumx proliferum

Family
Amaryllidaceae (am-uh-ril-id-AY-see-ee)
Genus
Allium (AL-ee-um)
Synonym
Sun Exposure
Full Sun
Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)
Hardiness
USDA Zone 3b: to -37.2 °C (-35 °F)
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
N/A
Bloom Color
Inconspicuous/none
Bloom Time
Other Details
Category
Perennials
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Propagation Methods
From bulbils
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Augusta, Georgia

Hayden, Idaho

Zimmerman, Minnesota

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Gardener's Notes:

1
positive
1
neutral
0
negative
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R
Hayden, ID | July 2010 | positive

I have had this plant going for 30 years, and have planted it in Northern California, and in North Idaho and have had very good luck with...Read More

F
Augusta, GA (Zone 8a) | November 2009 | neutral

A white version of the red Egyptian topsetting onion. Milder flavor and it does multiply bulbs in ground. It also sets the top bulbils. ...Read More

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