Pronounciation: Cor-e-OP-sis lan-ce-o-LA-ta
Landscape Use: Mixed flower garden, border, accent, mesic gardens themes in arid climates like Phoenix, xeric elsewhere. Will usually persist for 2 to 4 years in Phoenix as a perennial under good conditions.
Form & Character: Herbaceous perennial, bright, festive, prostrate to upright when flowering.
Growth Habit: Moderate, basal clumping when vegetative sending flower stalks to 2 feet tall.
Foliage/Texture: Opposite, variable in length, medium to dark green, oblanceolate, simple to pinnately lobed, more basally clustered, sparse on stems; medium texture.
Flowers & Fruits: Brilliant yellow to orange yellow ray flowers, single or double, 2 inches in diameter, on branched peduncles; fruit an achene, inconspicuous, seed wind dispersed.
Seasonal Color: Flowering during spring in Phoenix.
Temperature: Tolerant of all but highest summer heat, will freeze to ground in coldest climates.
Light: Partial shade to full sun, no intense western exposures.
Soil: Tolerant of some alkalinity.
Watering: In desert gardens, irrigate regularly as necessary to maintain an evenly moist soil.
Pruning: Remove flower stalks after bloom.
Propagation: Easy by seed.
Disease and pests: None
Additional comments: Coreopsis contains over 100 species of annuals and perennials native to the new world and Africa. There are many named cultivars of which those that are dwarf have great landscape border value for their consistent summer bloom. All Coreopsis attract butterflies.