Coreopsis, Threadleaf Tickseed 'Imperial Sun®'

Imperial Sun® Tickseed | Coreopsis 'Imperial Sun'

Height:  20 inches

Spread:  22 inches

Sunlight: full sun

Hardiness Zone:  4b

Brand:  Terra Nova

Description:

Amazingly bright, presenting masses of daisy-like yellow flowers with deep red eyes; tolerant of pests and drier soils; thriving in sandy and rocky soils; great as edging, or in containers; very hardy, with mildew resistant foliage

Ornamental Features

Imperial Sun® Tickseed is smothered in stunning yellow daisy flowers with dark red eyes at the ends of the stems from late spring to early fall. The flowers are excellent for cutting. Its narrow leaves remain emerald green in color throughout the season.

Landscape Attributes

Imperial Sun® Tickseed is an open herbaceous perennial with a mounded form. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.

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 bees and 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.

Imperial Sun® Tickseed is recommended for the following landscape applications;

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

Planting & Growing

Imperial Sun® Tickseed will grow to be about 18 inches tall at maturity, with a spread of 22 inches. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. 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 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 pH, but grows best in poor soils. It is somewhat tolerant of urban pollution. 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.

Imperial Sun® Tickseed 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 experts for more information on how to protect it over the winter months.