Coreopsis palmataPrairie coreopsis
Family:Asteraceae
属:金鸡菊属
common name:Prairie coreopsis
introduce:Plant Type: Herbaceous perennial
Family: Asteraceae
Missouri Native: Yes
Native Range: Wisconsin to Manitoba, south to Indiana and Oklahoma
Height: 1.5 to 2.5 feet
Spread: 1 to 1.5 feet
Bloom Time: May - July
Bloom Color: Yellow
Sun: Full sun (only)
Water: Dry to medium moisture
Maintenance: Low
General Culture:
Easily grown in dry to medium wet, well-drained soil in full sun. Thrives in poor, sandy or rocky soils with good drainage. Tolerant of heat, humidity and drought. Prompt deadheading of spent flower stalks encourages additional bloom and prevents any unwanted self-seeding. Spreads by rhizomes and self-seeding, and in optimum growing conditions will naturalize to form large colonies. Plants may be cut back hard in summer if foliage sprawls or becomes unkempt. If grown in borders, division may be needed every 2-3 years to maintain robustness.
Noteworthy Characteristics:
Prairie coreopsis (sometimes also commonly called stiff coreopsis and prairie tickseed) is a rhizomatous Missouri native wildflower which typically grows to 2.5 tall and is commonly found in prairies, glades and dry open woods throughout the State. Features pale yellow, daisy-like flowers (1-2" diameter) with eight yellow rays (mostly untoothed at the tips) and flat yellow center disks. Ray flowers are a distinctively paler yellow than most other native species of coreopsis. Flowers bloom atop stiff, upright stems from late spring to mid-summer. Basal leaves are absent. Opposite, sessile stem leaves with pronounced veining are divided into three narrow lance-shaped segments which do not cut to the leaf base. Plants in the genus coreopsis are often commonly called tickseed in reference to the resemblance of the seeds to ticks.
Problems:
No serious insect or disease problems. Tends to sprawl, particularly if grown in moist and/or fertile soils. Crown rot may occur if grown in moist, poorly drained soils.
Uses:
Best naturalized in native wildflower gardens, meadows or prairies. Good plant for areas with poor, dry soils. Can be effective in borders, but spreading tendencies must be kept in check.
