fbpx

Plant Finder

Plant Finder

You Are Here: Home / Plant Finder
Plant Finder
 
perennial

Blue Corkscrew Onion

Allium senescens 'var. glauca'

Add To My Wish List

print page
 
Blue Corkscrew Onion (Allium senescens 'var. glauca') at America's Best Flowers

Blue Corkscrew Onion flowers

Blue Corkscrew Onion flowers

(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

Blue Corkscrew Onion has masses of beautiful balls of lightly-scented lavender flowers at the ends of the stems from late spring to early summer, which are most effective when planted in groupings. Its sword-like leaves remain green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Blue Corkscrew Onion is an open herbaceous perennial with tall flower stalks held atop a low mound of foliage. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.

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.

Blue Corkscrew Onion is recommended for the following landscape applications;

  • General Garden Use

Planting & Growing

Blue Corkscrew 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 is a selected variety of a species not originally from North America. 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
Garden 
Applications
Flowers  Plant Form  Attracts Wildlife 
Ornamental Features
 

What Our Customers Say About Us

  • This was the most pleasant shopping experience I’ve had in a very very long time. Such incredible selections and EVERY SINGLE employee was FANTASTIC!

    - Hannah R..
  • Always enjoy the inspiration this place provides! Love there are so many employees around to answer questions and give directions.

    - Chrystal M..
  • Bring your own pots to this place and set up in a potting work station. You can use their soil and expert advice to make your purchase selections… Fun to do with kids.

    - Melle.
  • Awesome place, always friendly and helpful. Beautiful choices for plants!

    - Catherine C.
  • Everything was beautiful today, enjoyed my time there shopping!

    - Deb V.M.
  • Kudos to the crew at ABF for green houses filled with beautiful flowers & creative gardening elements.

    - Deb M.
128 queries in 3.928 seconds.