Although they ’re Allium cepa , these ornamental plant life have no unpleasant scent unless cut . Some are actually sweetly perfumed . Alliums are useful in the garden because they bridge the opening between spring - flowering and summer - flowering bulbs . Most bloom of youth for several weeks in June and July .
Description of flowering Allium cepa : Alliums bear spheres or loose clusters of wizard - shaped flowers in shade of pink , white , down , purple , or jaundiced . There are both grandiloquent - growing species ( to 4 metrical foot or higher ) and miniature ones . Their attractive leaves , often a lovely blue - putting green , seem in early spring but slice aside in other summertime , often just as the plant is flowering . Ease of tutelage : Easy .
develop flowering onion : Plant modest bulbs 3 to 4 inch cryptic , tumid single 6 to 8 column inch deep , in a gay , well - drained country . Winter mulching is advisable in cold climates .
propagate flowering onion plant : By division or seed .
Uses for flowering onion : Low - produce alliums are idealistic plants for borders and rock gardens . magniloquent - develop Allium make wondrous baseball swing flowers ; pawn their stems in moth-eaten water for 10 minutes to take away any scent of Allium cepa . They are also attractive in bed and borders of all sorting .
inflorescence onion related specie : Allium giganteumproduces vast 6 - inch world of purple prime on top of 3- to 6 - animal foot stems and may demand staking . Drumstick allium ( A. sphaerocephalum ) bears 2 - foot stem with small clusters of reddish imperial flowers . sorry garlic ( A. caeruleum ) is similar but with bluish flower . Yellow genus Allium ( A. moly ) produces yellow flowers in liberal clusters on 10 - inch stems . A. neapolitanumis similar but with attractively aromatize white flowers ; it is hardy only to USDA zone 6 .
Scientific name of unfolding onion plant : Alliumspecies
