Perhaps the tallest of the ornamental onions, Allium giganteum is a striking and bold addition to the garden with its star-shaped, tiny lilac-purple flowers forming a 5-6 in. wide (12-15 cm) globe-shaped cluster. Blooming in late spring to early summer, this Giant Allium enjoys long-lasting blooms and remains ornamental in the garden well into summer. A perfect background plant that you might want to combine with finer textured plants such as ornamental grasses. Great in fresh or dried flower arrangements too!

  • Growing up to 5-6 ft. tall (150-180 cm), this beauty naturalizes easily and will come back year after year!
  • Awarded the prestigious Award of Garden Merit by the Royal Horticultural Society
  • Easily grown in rich, sandy to gritty, dry to medium moisture, well-drained soils in full sun. Drought tolerant.
  • Attracts butterflies, but deer ignore it!
  • Stunning in beds, borders, cottage gardens. Spectacular in large sweeping drifts. For best visual impact, plant in groups (at least 10 to 15 bulbs). Excellent as cut flowers for both fresh and dried arrangements!
  • Mixes beautifully with other late spring flowering bulbs and creates stunning combinations with pink or white Delphiniums, Peonies or Irises.
  • To be planted in fall.

Many hundreds of Allium species exist, but only a modest few have made a name for themselves as garden plants. The ornamental onions distinguish themselves by their great diversity in color, inflorescence and flowering height. Many species bloom in early summer - just after the spring-flowering period and just before the exuberant full bloom of summer. All species can be used in the border. Certain small species are just perfect for a rock garden, and several lend themselves to naturalizing.