Photo by Melody

PlantFiles: Ornamental Onion
Allium thunbergii 'Alba'

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Family: Alliaceae
Genus: Allium (AL-ee-um) (Info)
Species: thunbergii (thun-BERG-ee-eye) (Info)
Cultivar: Alba
Additional cultivar information: (aka Ozawa Alba)

One member has or wants this plant for trade.

Category:
Bulbs
Perennials

Height:
6-12 in. (15-30 cm)

Spacing:
6-9 in. (15-22 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:
Sun to Partial Shade

Danger:
N/A

Bloom Color:
White/Near White

Bloom Time:
Mid Fall

Foliage:
Herbaceous

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
Unknown - Tell us

Patent Information:
Non-patented

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

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By kizilod
Thumbnail #1 of Allium thunbergii by kizilod

By Sneirish
Thumbnail #2 of Allium thunbergii by Sneirish

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive coriaceous On Apr 18, 2014, coriaceous from ROSLINDALE, MA wrote:

Like 'Ozawa' except in the color of the flowers:

Blooms in very late fall over a long period, continuing after first frost. Good orange fall foliage color.

Tough, adaptable, vigorous, trouble-free. Does not self-sow, increases very quickly but remains in a tight clump. Clumps are easily divided any time of the year. The grassy foliage looks good all season, does not go dormant till late fall.

Regional...

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

Swansea, Massachusetts
Uxbridge, Massachusetts



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