perennial

Asahi Sunflower

Heliopsis helianthoides 'Asahi'

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Asahi Sunflower (Heliopsis helianthoides 'Asahi') at Shelmerdine Garden Center

Asahi Sunflower flowers

Asahi Sunflower flowers

(Photo courtesy of NetPS Plant Finder)

Height:  30 inches

Spacing:  20 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  2b

Other Names:  Oxeye Daisy, Perennial Sunflower

Ornamental Features

Asahi Sunflower has masses of beautiful gold button flowers at the ends of the stems from early summer to early fall, which are most effective when planted in groupings. The flowers are excellent for cutting. Its serrated oval leaves remain green in colour throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Asahi Sunflower is an herbaceous perennial with a mounded form. 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 is best cleaned up in early spring before it resumes active growth for the season. It is a good choice for attracting butterflies to your yard. It has no significant negative characteristics.

Asahi Sunflower is recommended for the following landscape applications;

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

Planting & Growing

Asahi Sunflower will grow to be about 24 inches tall at maturity, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 20 inches apart. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years.

This plant does best in full sun to partial shade. It is very adaptable to both dry and moist locations, and should do just fine under typical garden conditions. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selection of a native North American species. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Asahi Sunflower is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It can be used either as 'filler' or as a 'thriller' in the 'spiller-thriller-filler' container combination, depending on the height and form of the other plants used in the container planting. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden. Be aware that in our climate, most plants cannot be expected to survive the winter if left in containers outdoors, and this plant is no exception. Contact our store for more information on how to protect it over the winter months.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Garden  Naturalizing  Container 
Applications
Flowers  Attracts Wildlife 
Ornamental Features

Hours of Inspiration

Monday – Friday 9am-8pm
Saturday + Sunday 9am-5pm

Shelmerdine Garden Centre Ltd.

7800 Roblin Boulevard
Headingley, MB R4H 1B6

Phone: 204.895.7203
Fax: 204.895.4372
Email: info@shelmerdine.com