Also known as ornamental onion , these genus Allium varieties provide eye - catching spring and summer efflorescence .
Alliums , also known asornamental onions , are some of the most beautiful flowering bulbs for the spring and summertime garden . Plant some of these popular varieties and they ’ll reward you with stunning blooms that resemble firework freeze in time .
Persian Blue Allium
One of the most common species of decorative onion , Persian blue air ( Allium aflatunense)produces a four- to five - inch ball of vivid purple - juicy flowers . Plant the electric-light bulb in the dusk , six to eight inch deep and about eight inch asunder . This long - last varietyattracts pollinatorsand isdeer- and rodent - resistive .
Bloom Season : recent springtime to early summer
Growing condition : Full sun and well - drained land

Credit: Bryan E. McCay
Size : To 3 feet magniloquent
Zones:4 - 8
Purple Sensation Allium
This ornamental onion plant variety is a showstopper , thanks to its four- to five - column inch earth of vivid purple flush that grow on stalks up to three fundament marvellous . Plant your bulbs in the spill , and they ’ll come back twelvemonth after year .
Growing status : Full Lord’s Day to part shade in well - drained soil
Zones:4–9

Credit: Mark Kane
Blue Allium
dreary genus Allium ( genus Allium caeruleum)is a smaller ornamental Allium cepa that offers sky - blue blooms in a ball - like cluster around one inch broad . imbed the bulbsin the fall , two to four inches rich , in beds , borders , rock garden , and hayfield .
size of it : To 2 substructure tall
Zones:4–8

Credit: Greg Ryan
Chives
Easilygrown from seed , and popular in the kitchen for their mild onion smack , chives(Allium schoenoprasum)have tubular , dope - comparable , dark green leaves that grow in dense thud . Its clover - like clusters of pale empurpled flowers add a splash of color toherb gardens , but also seem gorgeous develop as an ornamental in borders orcontainer gardens .
Bloom Season : Mid to recent spring
grow Conditions : Full sun to part shade and well - drained soil

Credit: Bill Stites
sizing : To 18 inches improbable
Golden Garlic
Commonly known as golden Allium sativum , or lily leek , Allium molyreally remain firm out with its yellow - hue blooms . This frail - lookingrock - gardenfavorite is in reality quite tough , stomach raging , dry condition well .
Size : To 15 inches tall
Zones:3–9

Credit: Peter Krumhardt
Drumstick Allium
Also sleep together as around - manoeuvre Allium porrum , drumstick allium ( Allium sphaerocephalon)produces cute , reddish - purple eggs - shape flower head . Each flower head comprise a tight cluster of lilliputian florets that emerge deep green but mature ( top to bottom ) to rose - purple . It ’s substantially grown in large groups in rock gardens , layer and borders , andopen woodland areas , but it also grow well in containers .
Bloom Season : Early to midsummer
Zones:3 - 10

Credit: Mark Kane
Globemaster Allium
One of the marvellous varieties you could find , ' Globemaster ' is ornamentally grown for itsspring bloomsof light - purple flower heads that are typically 6 to 10 in in diameter . This salmagundi is an eye - catching accent in the garden , as well as along - hold up cut flower .
Bloom Season : Late bounce
Size : To 4 feet tall

Credit: Janet Mesic Mackie
Zones:5–8
Turkistan Onion
Known for have leaves that are as beautiful as its flower , Turkistan onion ( Allium karataviense)is among the shorter ornamentalAlliumvarieties . It work well when planted in groups in sway gardens , border fronts , containers , andwindow boxes . Its pinkish flower heads are three to six inches across , held above three- to four - inch wide grey - green leaf . ' Ivory Queen ' is a ashen - flowered variety .
Size : To 8 inches marvellous
Pink Lily Leek
Though it ’s a short , smaller ornamental Allium cepa , pink lily leek ( Allium oreophilum)produces heart - catch magenta florets that form a loose flower headspring . It get an especially arresting display when planted in masses . The blooms form well infresh or dry efflorescence arrangement .
Zones:4–10
Star of Persia
Commonly called lead of Persia ( Allium cristophii ) , this species produces one of the largest blooms of anyAlliumand can have up to 100 single flowers pack into one peak caput . The idle purple blossom heads can progress to up to 12 inches in diam . Plant newfangled bulbs in the surrender , three to six inches deep and 10 to 12 inches apart . Star of Persia is especially nice as a fresh cut ordried flush .
Millenium Allium
An specially long - blooming assortment , ' Millenium ' fills the late - summer garden with light - over-embellished color . The two - in - encompassing read/write head float above a mound of glossy immature foliage . It ’s a reliable accent plant for miscellaneous borders andcottage garden .
Bloom Season : Late summertime
size of it : To 1 foot marvelous

Credit: Peter Krumhardt
Three-Cornered Leek
The dainty , swag white flowers of three - cornered scallion ( Allium triquetrum)form loose clusters on triangular straw ( hence its common name ) . It get well withroses , carrots , beetsandchamomile , but it can actually preclude legumes from thriving , so guide clear of that pairing .
Growing Conditions : Sun or shade and moist , well - enfeeble land
Zones:3–8

Credit: Mark Kane
Garlic Chives
If you ’re looking for an comestible white allium , you ’ve found it . Also squall Chinese chive , garlic chives(Allium tuberosum)bloom from later summer into dusk and produce 2 - inch all-inclusive clusters of lily-white flowers . Be sure todeadhead the flowersbefore they prepare seeds to preclude the sprouting of unwanted seedlings throughout the garden .
Zones:3 - 9
Hair Allium
Love it or hate it , this diversity is decidedly unique . Allium vineale’Hair ' bring out blooms with royal heart and soul that have green capillary extensions . Its unusual appearing addsunique textureto beds and borders , and no doubt will be a conversation newbie .
Mount Everest
As majestic as its namesake , ' Mount Everest ' offers six - in heads of bright white flowers on marvellous stems . For the good visual impact , plant at least 10 to 15 bulbs in a group . ' Mount Everest ' mixes attractively with other belated - bound blossom flowers , such asdelphiniums , peonies , oririses .
Bloom Season : Late spring or other summer
Nectaroscordum
Though technically not an genus Allium , this close congener is often sold as one . Nectaroscordum siculum , usually known as Sicilian love garlic , develop Vanessa Bell - mould flowers with scarlet - regal grading . The seeded player foreland dry out well and can be used indried flower arrangements .
Zones:5 - 10
Allium senescens subsp. montanum var. glaucum
Allium senescenssubsp.montanumvar.glaucumhas a taste of a name but it ’s pure for the rock ‘n’ roll garden or front of the border . It has blue - fleeceable leaves that grow in a spiral and clusters of purple - pink flowers in later summertime .
Size : To 6 inches tall
Zones:5 - 9

Credit: Mark Kane
Allium stipitatum
Allium stipitatumblooms in early summer with 4 - inch - wide clusters of lilac flowers . It is sometimes confuse with the standardised showy allium .
Bloom Season : Early summer
Zones:4 - 9

Credit: Blaine Moats
Showy allium
Allium rosenbachianumoffers 4 - inch - full globes of purple prime in summer .
Bloom Season : Summer
Zones:4 - 10

Credit: Peter Krumhardt
‘Summer Beauty’ wild onion
Allium tanguticum’Summer Beauty ' shows off clusters of benighted lavender - blue flowers in midsummer on 2 - foot - tall stems .
Bloom Season : Midsummer

Credit: Marty Baldwin

Credit: Andy Lyons

Credit: Andy Lyons

Credit: Peter Krumhardt

Credit: Denny Schrock

Credit: Dean Schoeppner

Credit: Peter Krumhardt

Credit: Denny Schrock