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perennial

Purple Sensation Ornamental Onion

Allium 'Purple Sensation'

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Purple Sensation Ornamental Onion (Allium 'Purple Sensation') at Stein's Garden & Home

Purple Sensation Ornamental Onion flowers

Purple Sensation Ornamental Onion flowers

(Photo courtesy of NetPS Plant Finder)

Purple Sensation Ornamental Onion (Allium 'Purple Sensation') at Stein's Garden & Home

Purple Sensation Ornamental Onion in bloom

Purple Sensation Ornamental Onion in bloom

(Photo courtesy of NetPS Plant Finder)

Plant Height:  12 inches

Flower Height:  3 feet

Spread:  12 inches

Sunlight:  full sun 

Hardiness Zone:  2

Other Names:  Flowering Onion

Garden Stars Perennials

The Garden Stars® Perennial Collection is a complete line of all your traditional perennial favorites with some exciting new varieties too! These perennials are grown by a network of trusted growers to provide you the highest quality plants for your garden. These varieties have been selected for hardiness, compact growth, and consistent, reliable flower color. Perfect for planting in: garden beds, perennial borders, rock, cottage, prairie or woodland gardens, & even pots on the patio!

Ornamental Features

Purple Sensation Ornamental Onion features bold balls of lightly-scented purple flowers at the ends of the stems from late spring to early summer. The flowers are excellent for cutting. Its sword-like leaves remain green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Purple Sensation 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 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.

Purple Sensation Ornamental Onion is recommended for the following landscape applications;

  • Vertical Accent
  • General Garden Use

Planting & Growing

Purple Sensation Ornamental Onion will grow to be about 12 inches tall at maturity extending to 3 feet tall with the flowers, with a spread of 12 inches. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 5 years. As this plant tends to go dormant in summer, it is best interplanted with late-season bloomers to hide the dying foliage.

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.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Articulation  Garden 
Applications
Flowers  Texture  Plant Form  Attracts Wildlife 
Ornamental Features