The next long weekend may be in July, but the best fireworks this year come from the Allium ‘Schubertii’ in the garden. The purple flowers of this ornamental onion are showstoppers. Every gardener, blogger and writer eventually stumbles across the description of the large, globe-like flowers that are 15 cm in diameter. Visualize star-shaped, lilac-pink flowers that shoot out of the centre stem; a spherical shape comprised of hundreds of tiny flowers. Imagine a giant sparkler of a flower head caught in mid-bang with as many as 200 individual pink florets or a whimsical giant onion creating a spidery ball in bloom.
Many will agree that when it’s in bloom, any allium commands attention as it towers over the other plants in the garden. This particular allium will climb 60 cm on spindly stems and spread an amazing 30 cm. They make even more of a statement if grouped in clumps of three or more. And, they remind Sonia Leslie, one of the master gardeners featured in Gardening from a Hammock, of the stars and planets. She recommends these plus any and all alliums for a low-maintenance garden.
“These are members of the onion family, unappealing to squirrels or deer,” she says. Sonia assures us that you can’t go wrong with any allium as they last a long time in the garden and then the seed heads provide interest when they fade and dry. Allium bulbs are planted in the fall, bloom throughout spring and summer (depending on the variety), and then provide architectural interest throughout the fall and into the winter.
There are hundreds of varieties of alliums, from small to huge. Sonia recommends three varieties in particular to provide low, medium and tall heights and that provide blooms from spring until midsummer. They are: golden garlic allium (Allium moly ‘Golden Garlic’), giant allium (Allium giganteum), and, of course, our dramatic Schubertii allium (Allium ‘Schubertii’).
Allium ‘Schubertii’ is one of the star plants selected by 17 expert gardeners in Gardening from a Hammock by Ellen Novack and Dan Cooper. Gardening from a Hammock is an easy-to-use book describing how to create a fabulous, four-season garden using low-maintenance plants. It’s loaded with tips and has a botanical reference guide.
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