Coreopsis, commonly known as "Tickseed", are prized by many gardeners for the bright colors of their flowers and their ability to put up with most garden soils. There are over 100 species available and countless hybrids, including both annuals and perennials. Most of them are low maintenance, drought tolerant and enjoy a long blooming season, generally from early summer to fall, or even longer if deadheaded. Native American Coreopsis are not only workhorses in sunny borders, they also make excellent cut flowers.
- Prolific bloomers, Coreopsis produce masses of showy single, semi-double or double daisy like flowers, mostly in shades of rich gold, yellow, orange or red.
- There is, however a notable variety, Coreopsis rosea, with lovely rose pink blossoms. Some Coreopsis flowers may be bicolor, with a contrasting color in their center which provides added appeal.
- The Coreopsis foliage varies across varieties, from large and low-growing leaves to mounds of narrow, finely-textured leaves.
- Coreopsis grow vigorously from 6 in. to 48 in. in height (15-120 cm), depending on the varieties. Coreopsis usually self-sow in the garden.
- Coreopsis prefer full sun (but tolerate partial shade specifically in hot summer areas) and enjoy dry to medium moisture, well-drained soils. They thrive in poor, sandy or rocky soils and are drought tolerant. However, the best flower production is obtained if your Tickseeds are given regular water.
- Easy to grow, unfussy and long-lived, Coreopsis are welcomed additions to beds and borders, rock gardens, cottage gardens. They look lovely in containers or at home in a vase. The taller varieties are great at the back of the border and well suited to the cutting garden while the shorter, mounding varieties are perfect for edging.
- Disease-free and relatively low maintenance, Coreopsis are a favorite of bees and butterflies, but are ignored by deer.
- Clip the spent blooms so the flowers will keep coming. Midsummer shearing (after the first flush of flowers) should help tidy up the plant and promote a fall rebloom