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Allium giganteum[AL - ee - um jy - GAN - teeing ground - um or gy - GAN - tee - um ] is a perennial ornamental onion hail from Central Asia and the Himalayas .
This “ giant onion ” belong to the Amaryllidaceae family . The Latin ( Allium ) means “ garlic ” and ( giganteum ) means giant .
Allium giganteum is ordinarily known as gargantuan onion plant or flowering onion .
Allium Giganteum Care
Size & Growth
Of thevarious Allium speciesof ornamental onions , giganteum is the tallest species . The plant can grow 3′ to 5′ groundwork high and scatter 1 - 1/2′ to 2′ base . Divide and replant bulbs every 3 - 4 years .
Flowering & Fragrance
The splashy , fragrant , purple blossoms appear from May through June . The bloom time survive for about three week .
Tall , secure stems ( 3″ to 4″ inch mellow ) emerge from the center of the basal russet scab early in spring .
By late spring , bombastic , showy , round clusters of royal bloom come out . These blossom globes are about the size of a playground ball and quite impressive .
Foliage Of Allium Giganteum
Foliage grow in a basal rosette which is light-green Gy in color . The leaf are approximately 18″ in long , fragrant and strap - shaped .
stem turn and leaves of the jumbo allium industrial plant smell like onions , but this is not an edible works . It is the only member of the Allium family originate for its large flower .
Lighting For Giant Allium Bulbs
In the United States , this Allium electric-light bulb is hardy from USDA hardiness geographical zone 5 through 8 . The Giant Allium requires full sun exposure and protection against high winds .
Watering and Feeding Requirements
Allium has only temperate watering requirements . Saturate the soil after planting . lend oneself a flowering lightbulb fertilizer at planting . You will not require to fertilize again .
Once established the plants are drought tolerant . If you get regular rainfall , you may not require to water at all . Never allow plant to stand in piddle for extended periods of time as the incandescent lamp will rot .
Soil Requirements & Transplanting
Ornamental Allium flower do well when :
works giant allium bulbs 5″ or 6″ inch deep and 9″ inches to a foot apart .
When transplant or displace plant , wait until the end of the grow season after the foliage has died back .
Take up the bulbs , divide them as needed and replant .
Ornamental Onion Grooming & Maintenance:
After industrial plant bloom , the leaves will die back leaving only the tall , tumid fore and pommy - pom heyday . You may want to stake the shank to prevent flop .
How To Propagate Allium Giganteum
leave alone large bulbs ( 2″-3″ in diam ) in the ground to spread or take them up annually , divide and redistribute . It is saucy to take them up at least once every three or four years to keep overcrowding .
At the last of the growing time of year , dig up the genus Allium bulbs in the fall , water parting and replant or leave them in berth .
If leave alone the electric light in position , reduce tearing until the radical have withered and pass away . Cut off the beat botany even with the ground .
Apply sullen mulch to protect the bulbs during the wintertime .
To split bulb and increase your planting , swipe the bulbs with a trowel . You will find there are several bulbs tie .
Use your finger to separate them lightly . Amend the soil and replant bulbs at the right spatial arrangement .
related to recital : Growing The Pregnant Onion [ Ornithogalum caudatum ]
Giant Allium Pests and Disease Problems
Giant Alliums do not live many serious diseases or pesterer problems . These “ heavy onion ” are also deer and coney resistant .
Like most bulb , they are prone to rot if the soil is too sloshed .
industrial plant in full blossom , are top - heavy . Locate your Allium bed in a sheltered orbit where wind can not damage it . It is commonly necessary to stake the gravid flowers and flora to foreclose them from twig over .
Is “Giant Garlic” Toxic?
info on the toxicity of this works is conflicting .
All flora share are considered gently toxic — reactions such as diarrhea , nausea and vomit and not rare .
There is also information suggesting that the bulblets , bulbs , and leaves can be used cooked , raw , pickle and as a flavourer .
All - in - all , skillful practice would be to use one of the many other types of Allium intended as a food crop in the kitchen . Leave the Allium gigantea in the flower garden .
Best Uses For Ornamental Allium Giganteum
The flowering onion is a striking and unusual flowering bulb . It adds a great mickle of interest to any garden .
They make a good pick as bedding plants , sheer blossom and exhibition plant .
These plants look best when 5 to 7 bulbs are grouped together . Because they are so marvellous , they make a very dramatic scope flora .
A border of ornamental onions planted along a back fence makes a endearing definition .
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