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perennial

Star Of Persia Onion

Allium christophii

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Star Of Persia Onion (Allium christophii) at America's Best Flowers

Star Of Persia Onion flowers

Star Of Persia Onion flowers

(Photo courtesy of NetPS Plant Finder)

Star Of Persia Onion (Allium christophii) at America's Best Flowers

Star Of Persia Onion in bloom

Star Of Persia Onion in bloom

(Photo courtesy of NetPS Plant Finder)

Plant Height:  12 inches

Flower Height:  24 inches

Spread:  12 inches

Sunlight:  full sun 

Hardiness Zone:  2a

Other Names:  Flowering Onion

Ornamental Features

The Star Of Persia Onion features bold balls of lightly-scented steel blue 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

The Star Of Persia 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 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.

The Star Of Persia Onion is recommended for the following landscape applications;

  • General Garden Use

Planting & Growing

The Star Of Persia Onion will grow to be about 12 inches tall at maturity extending to 24 inches 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 species is not originally from North America. It can be propagated by multiplication of the underground bulbs.

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

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