Coreopsis auriculata L.
Lobed Tickseed, Mouse-ear Tickseed, Ear-leaved Tickseed
Coreopsis auriculata var. auriculata, Coreopsis diversifolia, Cymbaecarpa auriculata
Bloom Time: Spring to early summer
Coreopsis auriculata is a stoloniferous short-lived herbaceous perennial that typically grows in a dense, bushy, slowly-spreading, up to 18 inches (45 cm) tall clump. Mostly basal, hairy, petioled, ovate to elliptic leaves are deep green and up to 3 inches (7.5 cm) long. Each leaf has a distinctive pair of small lateral lobes at the base of the blade. Daisy-like flowers are up to 2 inches (5 cm) wide and have eight yellow rays (each having a three-lobed apex) surrounding a yellow center disk. Flowers bloom primarily from spring to early summer atop upright flower stalks.
USDA hardiness zone 4a to 9b: from −30 °F (−34.4 °C) to 30 °F (−1.1 °C).
How to Grow and Care
Most varieties are very easy to grow and are not particular about soil quality or soil pH. Many can be grown from seed, either started indoors, 4-6 weeks before your last expected frost, or direct-seeded outdoors. Many will seed themselves. However, hybrid varieties do not grow true to seed.
Coreopsis will need regular water when first planted until they are established. After that, they are quite drought-tolerant.
Deadheading will keep the plants blooming throughout the summer. Some of the smaller flowered varieties are difficult to deadhead, and you may prefer to shear the plants once the first flush of flowers fades. They will fill in quickly.
Most Coreopsis plants will form tidy clumps, but some taller species may require staking to look attractive, especially if grown in partial shade.
Although they are rugged plants, they don't tend to live more than 3 to 5 years. A decrease in flowering signals that it is time to divide the plants or plant some new ones from seed.
See more at How to Grow and Care for Coreopsis.
This species is native to the United States (from Virginia to Florida and Mississippi).
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