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PlantFiles: Flowering Onion
Allium hollandicum 'Purple Sensation'

 
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Family: Alliaceae
Genus: Allium (AL-ee-um) (Info)
Species: hollandicum (hol-LAN-dee-kum) (Info)
Cultivar: Purple Sensation

Synonym:Allium aflatunense

» View all varieties of Onions and Garlic

7 vendors have this plant for sale.

16 members have or want this plant for trade.

Category:
Bulbs

Height:
24-36 in. (60-90 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:
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Purple

Bloom Time:
Mid Spring

Foliage:
Blue-Green
Smooth-Textured
Shiny/Glossy-Textured

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

Soil pH requirements:
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:
Allow seedheads to dry on plants; remove and collect seeds

Click thumbnail
to view:

By Melissa_Ohio
Thumbnail #1 of Allium hollandicum by Melissa_Ohio

By Starzz
Thumbnail #2 of Allium hollandicum by Starzz

By Starzz
Thumbnail #3 of Allium hollandicum by Starzz

By kdjoergensen
Thumbnail #4 of Allium hollandicum by kdjoergensen

By kdjoergensen
Thumbnail #5 of Allium hollandicum by kdjoergensen

By LilyLover_UT
Thumbnail #6 of Allium hollandicum by LilyLover_UT

By TBGDN
Thumbnail #7 of Allium hollandicum by TBGDN

There are a total of 19 photos.
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Profile:

3 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorComment
Positive bluespiral On Dec 1, 2006, bluespiral from (Zone 7a) wrote:

I like the way these purple spheres seem to float above the leaves of perennials under which they are planted - like visiting UFOs.

Positive TBGDN On Feb 28, 2006, TBGDN from Macy, IN (Zone 5b) wrote:

Very attractive mid to late spring bulbs. Dresses up a perennial bed while the main plants are waiting their turn to bloom. Very hardy here; easily grown.

Positive catcollins On Feb 25, 2006, catcollins from West Friendship, MD (Zone 6b) wrote:

This is a super easy, dramatic, stand out in the garden. It never needs staking, even with the strong Spring storms we get in central Maryland. The flowers last a really long time and help fill that awkward gap between the later spring bulbs and the perennials. I plant these 10 at a time, to be sure I have some to cut for bouquets. They do fine in a bit of shade and just flower a little later. I have some planted in damp soil and others in hard, rocky soil. No problems. Our deer and chipmunks leave these alone.

Regional...

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

San Leandro, California
Aurora, Colorado
New Milford, Connecticut
Cumming, Georgia
Lawrenceville, Georgia
Rock Falls, Illinois
Saint Charles, Illinois
Macy, Indiana
Ewing, Kentucky
Hebron, Kentucky
Durham, Maine
Ellicott City, Maryland
West Friendship, Maryland
Peabody, Massachusetts
Winchester, Massachusetts
Mason, Michigan
South Plainfield, New Jersey
Los Alamos, New Mexico
Roswell, New Mexico
Clinton Corners, New York
Cleveland, Ohio
Felicity, Ohio
Norristown, Pennsylvania
Wilkes Barre, Pennsylvania
Conway, South Carolina
Knoxville, Tennessee
Petersburg, Virginia
Kalama, Washington
Seattle, Washington
Vancouver, Washington



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