VANDERMEER

PLANT LIBRARY

Find the perfect plant for your space by browsing through this extensive selection that we typically carry every year.

This library is for information purposes only.

 
perennial

Millenium Ornamental Onion

Allium 'Millenium'

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Millenium Ornamental Onion (Allium 'Millenium') at Vandermeer Nursery

Millenium Ornamental Onion flowers

Millenium Ornamental Onion flowers

(Photo courtesy of NetPS Plant Finder)

Millenium Ornamental Onion (Allium 'Millenium') at Vandermeer Nursery

Millenium Ornamental Onion in bloom

Millenium Ornamental Onion in bloom

(Photo courtesy of NetPS Plant Finder)

Millenium Ornamental Onion (Allium 'Millenium') at Vandermeer Nursery

Millenium Ornamental Onion flowers

Millenium Ornamental Onion flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height:  15 inches

Flower Height:  20 inches

Spread:  15 inches

Sunlight:  full sun 

Hardiness Zone:  4a

Other Names:  Flowering Onion

Description:

A spectacular ornamental onion forming an upright clump of glossy green, thick, strappy leaves; a profusion of lilac-purple rounded clusters of flowers in mid-summer; impressive when massed in groupings; great as a long lasting cut flower

Ornamental Features

Millenium Ornamental Onion features bold balls of lightly-scented lilac purple flowers with purple overtones at the ends of the stems in mid summer. The flowers are excellent for cutting. Its attractive glossy sword-like leaves remain dark green in colour throughout the season.

Landscape Attributes

Millenium Ornamental Onion is an open herbaceous perennial with tall flower stalks held atop a low mound of foliage. Its relatively coarse texture can be used to stand it apart from other garden plants with finer foliage.

This is a relatively low maintenance plant, and should only be pruned after flowering to avoid removing any of the current season's flowers. It is a good choice for attracting bees and butterflies to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. It has no significant negative characteristics.

Millenium Ornamental Onion is recommended for the following landscape applications;

  • Mass Planting
  • Border Edging
  • General Garden Use
  • Container Planting

Planting & Growing

Millenium Ornamental Onion will grow to be about 15 inches tall at maturity extending to 20 inches tall with the flowers, with a spread of 15 inches. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 5 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!

This plant should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This particular variety is an interspecific hybrid. It can be propagated by multiplication of the underground bulbs; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Millenium Ornamental Onion is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Edging  Garden  Container 
Applications
Flowers  Foliage Color  Texture  Plant Form  Attracts Wildlife 
Ornamental Features

** Plants listed may not be in stock at all times. **

Please contact us directly for current stock availability.
 
Our inventory varies seasonally and we cannot guarantee that every plant will be in stock at all times. To confirm if we have the plant that you're looking for, please call (905) 427-2525 or e-mail  us at info@vandermeernursery.com.
 
Remember, this library does not include our entire selection. Visit us year-round to check out varieties that may not be listed here!