Coreopsis 'American Dream' (COREOPSIS rosea 'American Dream')
Easily grown in medium moisture, well-drained soil in full sun. Unlike other species of Coreopsis, C. rosea and its cultivars have very little drought tolerance and need consistently moist soils in order to thrive. Avoid poorly-drained heavy clay soils, however. Prompt deadheading of spent flower stalks can be tedious for a large planting, but does tend to encourage additional bloom and prevent any unwanted self-seeding. Plants may be sheared in late summer to promote a fall rebloom and to tidy the planting (stems often become matted as summer progresses). In optimum growing conditions, plants will spread in the garden by rhizomes and self-seeding to form a dense ground cover, sometimes to the point of being considered aggressive.
'American Dream' comes true from seed and is available for purchase from many seed companies, though Alan Armitage suggests that this cultivar does not differ significantly from the species.Zone: 3 to 9
Height: 1.50 to 2.00 feet
Spread: 1.00 to 1.50 feet
Bloom Time: June to August
Bloom Description: Yellow disk with rose rays
Sun: Full sun
Water: Medium
Maintenance: Low
Suggested Use: Naturalize
Flower: Showy
Attracts: Butterflies
Tolerate: Deer, Dry Soil, Shallow-Rocky Soil