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Common Name: golden knee
Type: Herbaceous perennial
Family: Asteraceae
Zone: 5 to 9
Native Range: Eastern United States
Height: 0.5 to 1 feet
Spread: 0.75 to 1.5 feet
Bloom Time: May to October
Bloom Color: Yellow
Bloom Description: Yellow
Sun: Part shade to full shade
Water: Medium to wet
Maintenance: Low
Flowers: Showy Flowers
Tolerates: Dense Shade
Uses: Rain Garden, Will Naturalize
Culture
Easily grown in average, medium, well-drained soils in part shade to full shade. Prefers moist, rich, organic soils. Tolerates wet soils. Spreads by rhizomes to form an attractive ground cover, but is easily controlled. Remove spent flower stems for best ground cover appearance. Easily grown from seed and may self-seed in the garden.
Noteworthy Characteristics
Goldenstar is a rhizomatous, low-growing perennial which typically forms a foliage mat 3-4" tall, but flowering stems can bring total plant height to 8-12". Features star-shaped, bright yellow flowers (to 1.5" diameter) on stems originating in the leaf axils. Each flower has five, rounded, slightly-notched, yellow petals and a center tuft of yellow disk flowers. Long, spring to fall bloom period in cool summer climates. In hot summer climates such as St. Louis, bloom is profuse in spring, but usually becomes sparse or stops in the heat of the summer, with a light rebloom occurring in the fall. Ovate, toothed, bright green leaves to 3" long. Native to rich woods in southeastern U.S.