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

Medusa Ornamental Onion

Allium 'Medusa'

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

Medusa Ornamental Onion in bloom

Medusa Ornamental Onion in bloom

(Photo courtesy of NetPS Plant Finder)

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

Medusa Ornamental Onion flowers

Medusa Ornamental Onion flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height:  18 inches

Flower Height:  24 inches

Spacing:  18 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  4a

Other Names:  Flowering Onion

Brand:  Walters Gardens

Description:

Beautiful, light amethyst purple flower globes are produced above twisted, snaky, grey-green foliage in late summer to early fall; an excellent naturalizing plant that is also great in containers

Ornamental Features

Medusa Ornamental Onion features bold balls of lightly-scented lavender flowers with purple overtones at the ends of the stems from late summer to early fall. The flowers are excellent for cutting. Its attractive twisted sword-like leaves remain grayish green in colour throughout the season.

Landscape Attributes

Medusa Ornamental Onion is an open herbaceous perennial with tall flower stalks held atop a low mound of foliage. Its relatively fine texture sets it apart from other garden plants with less refined 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.

Medusa Ornamental Onion is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Naturalizing And Woodland Gardens
  • Container Planting

Planting & Growing

Medusa Ornamental Onion will grow to be about 18 inches tall at maturity extending to 24 inches tall with the flowers, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 18 inches apart. 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 does best in full sun to partial shade. It prefers dry to average moisture levels with very well-drained soil, and will often die in 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.

Medusa 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  Garden  Naturalizing  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!
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