Soft lavender flower clusters are held on strong stems above a mound of glaucous blue green foliage. The wide, linear leaves have a slight twist. Compared to 'Millenium', 'Bubble Bath' has lighter purple flowers on larger 3" flower clusters. Compared with the bulb-type varieties like 'Globemaster', this type of Allium will have smaller, more numerous flower clusters, bloom in summer instead of spring, and have foliage that stays attractive through fall. 
Full sun to part shade.