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perennial

Sea Urchin Chrysanthemum

Chrysanthemum 'Sea Urchin'

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Sea Urchin Chrysanthemum (Chrysanthemum 'Sea Urchin') at Lakeshore Garden Centres

Sea Urchin Chrysanthemum flowers

Sea Urchin Chrysanthemum flowers

(Photo courtesy of NetPS Plant Finder)

Height:  18 inches

Spread:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  4a

Other Names:  Garden Mum, Korean Mum, Dendranthemum

Description:

Big and beautiful pale yellow, sea urchin shaped blooms stand out against green foliage on upright habit plants; perfect for containers, beds and borders; adds a wonderful texture to fresh-cut arrangements; blooms from later summer to late fall

Ornamental Features

Sea Urchin Chrysanthemum is smothered in stunning creamy white daisy flowers with lemon yellow overtones and rose tips at the ends of the stems from early to late fall. The flowers are excellent for cutting. Its fragrant ferny leaves remain green in colour throughout the season.

Landscape Attributes

Sea Urchin Chrysanthemum is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Sea Urchin Chrysanthemum is recommended for the following landscape applications;

  • Mass Planting
  • Border Edging
  • General Garden Use
  • Container Planting

Planting & Growing

Sea Urchin Chrysanthemum will grow to be about 18 inches tall at maturity, with a spread of 24 inches. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 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 does best in average to evenly moist conditions, but will not tolerate standing water. 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 particular variety is an interspecific hybrid. 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.

Sea Urchin Chrysanthemum is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the larger thriller plants stand out. 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 experts for more information on how to protect it over the winter months.

This plant is not reliably hardy in our region, and certain restrictions may apply; contact the store for more information.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Edging  Garden  Container 
Applications
Flowers  Texture 
Ornamental Features