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

star-of-persia allium

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

Allium Aflatunense Summer Bulbs

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

Allium aflatunense ‘Purple Sensation’

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

Blue Allium

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

chives Allium schoenoprasum

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

Golden garlic Allium moly

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

Purple Drumstick Allium

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

Allium Globemaster

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

Allium karataviense

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

Pink Small Allium ostrowskianum

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

Allium Millenium

Credit: Blaine Moats

Showy allium

Allium rosenbachianumoffers 4 - inch - full globes of purple prime in summer .

Bloom Season : Summer

Zones:4 - 10

Allium triquetrum

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

Garlic Chives

Credit: Marty Baldwin

Allium Hair

Credit: Andy Lyons

Allium ‘Mount Everest’

Credit: Andy Lyons

Nectaroscordum false Allium

Credit: Peter Krumhardt

Allium senescens

Credit: Denny Schrock

Allium stipitatum

Credit: Dean Schoeppner

Showy allium Allium rosenbachianum

Credit: Peter Krumhardt

‘Summer Beauty’ allium

Credit: Denny Schrock