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PlantFiles: Giant Onion, Giant Allium
Allium giganteum 'Globemaster'

 
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Family: Alliaceae
Genus: Allium (AL-ee-um) (Info)
Species: giganteum (jy-GAN-tee-um) (Info)
Cultivar: Globemaster

6 vendors have this plant for sale.

37 members have or want this plant for trade.

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:
Unknown - Tell us

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 mystic
Thumbnail #1 of Allium giganteum by mystic

By mystic
Thumbnail #2 of Allium giganteum by mystic

By debi_z
Thumbnail #3 of Allium giganteum by debi_z

By Melissa_Ohio
Thumbnail #4 of Allium giganteum by Melissa_Ohio

By Melissa_Ohio
Thumbnail #5 of Allium giganteum by Melissa_Ohio

By JanFRN
Thumbnail #6 of Allium giganteum by JanFRN

By lorettamar
Thumbnail #7 of Allium giganteum by lorettamar

There are a total of 17 photos.
Click here to view them all!

Profile:

3 positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorComment
Positive carpathiangirl On Jun 29, 2009, carpathiangirl from Akron, OH (Zone 5a) wrote:

Easy-to-grow, undemanding and interesting plant here in my 5a zone.

Neutral hk1972 On Apr 3, 2009, hk1972 from Henderson, NV wrote:

Globemasters do not grow in the hot, dry, desert region here. Those catalog companies will say anything to get you to buy! I am in zone 9a and have had no luck with these. Other alliums have done well. The most this can grow is about 6 leaves in mid-spring, a stick and bud comes out, then it gets too hot to bloom as the globemasters are known for their large spheres. I have never seen this grown successfully anywhere here in Henderson or Las Vegas, NV. But have seen it do very well in Southern California.

Positive lakeshoredrive On Jan 4, 2009, lakeshoredrive from Chicago, IL wrote:

The Globemaster is just beautiful. Like a giant lollipop, not picky about soil, even tolerating salt.

Positive lorettamar On Sep 25, 2006, lorettamar from Southold, NY (Zone 7a) wrote:

These tall flowers don't have to be staked, but the leaves are unattractive. Be sure to plant them among other plants that have plenty of nice foliage.

Regional...

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

,
Garberville, California
Sacramento, California
Denver, Colorado
Old Lyme, Connecticut
Cordele, Georgia
Dallas, Georgia
Chicago, Illinois
Decatur, Illinois
Mount Prospect, Illinois
Olathe, Kansas
Shawnee Mission, Kansas
Ewing, Kentucky
Taylorsville, Kentucky
Adamstown, Maryland
Baltimore, Maryland
Edgewater, Maryland
Brimfield, Massachusetts
Springfield, Massachusetts
Winchester, Massachusetts
Highland Park, Michigan
Florence, Mississippi
Ponca, Nebraska
Lisbon, New Hampshire
Neptune, New Jersey
Melrose, New Mexico
Albany, New York
Chester, New York
Pennellville, New York
Southold, New York
Elizabeth City, North Carolina
Winston Salem, North Carolina
Akron, Ohio
Dayton, Ohio
Felicity, Ohio
Oak Hill, Ohio
Bellefonte, Pennsylvania
Norristown, Pennsylvania
Wilkes Barre, Pennsylvania
Conway, South Carolina
Salt Lake City, Utah
Tremonton, Utah
Newport News, Virginia
Kalama, Washington
Kent, Washington



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