Gardening Articles: Flowers :: Bulbs
by Susan Littlefield
About This Plant
Allium 'Globemaster' This is a real showstopper, with silvery purple flower heads as large as volleyballs on 3 foot stems. In bloom for weeks in late spring and early summer, the foliage of these plants usually holds up well during the bloom period.
Allium schubertii (Tumbleweed Onion) If you're looking for something truly different, try this late spring bloomer. Like floral fireworks, the 12 inch wide, rose pink flower heads are composed of individual star-shaped florets, each on a different length stalk, giving the entire head a loose, spidery appearance. Not as hardy as other alliums, it does best in zones 7-9.
Allium sphaerocephalon (Drumstick Allium) The 1 to 2 inch, reddish-purple flower heads of this midsummer bloomer are oval in shape.
Allium senescens subp.glaucum (Corkscrew Onion) Look for this allium in the perennials section of the nursery; it grows from rhizomes rather than forming a bulb. Blooming in mid to late summer with 2 inch lavender-pink flower heads, its distinctive, flat, corkscrewed foliage remains attractive throughout the summer.
Allium triquetum Unlike most alliums, this late spring bloomer does best in part shade and its 2 inch white flowers are nodding, rather than erect.
Allium thunbergii 'Ozawa' (Japanese Onion) One of the last to bloom, the one-inch, rosy pink, globe-shaped flowers top foot-tall stems beginning in September. This rhizomatous allium is usually offered for sale in containers.