Coreopsis, Threadleaf Tickseed 'Sylvester'

Sylvester Coreopsis | Coreopsis verticillata 'Sylvester'

Height:  18 inches

Spread:  16 inches

Sunlight: full sun

Hardiness Zone:  4a

Other Names:  Threadleaf Coreopsis

Brand:  Gertens

Description:

Attractive, dainty daisy-like yellow flowers with golden-yellow centers over mounds of very fine foliage; thrives in sandy and rocky soils and is drought tolerant

Ornamental Features

Sylvester Coreopsis is smothered in stunning yellow daisy flowers with gold eyes at the ends of the stems from early summer to mid fall. The flowers are excellent for cutting. Its threadlike leaves remain emerald green in color throughout the season.

Landscape Attributes

Sylvester Coreopsis 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 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.

Sylvester Coreopsis is recommended for the following landscape applications;

• Mass Planting
• Rock/Alpine Gardens
• Border Edging
• General Garden Use
• Groundcover
• Container Planting

Planting & Growing

Sylvester Coreopsis will grow to be about 16 inches tall at maturity, with a spread of 16 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 8 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 is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for a low-water garden or xeriscape application. It is not particular as to soil pH, but grows best in poor soils. It is somewhat tolerant of urban pollution. 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.

Sylvester Coreopsis 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 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.