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ATypes of Coreopsis

ATypes of Coreopsis

ATypes of Coreopsis

Coreopsis, often called tickseed, is a genus containing up to 80 species of flowering perennials native to North America, Central America, and South America. The flowers are usually yellow and daisy-like (and, like daisies, they're part of the Aster family). There are four species of particular interest to gardeners: C. grandiflora (large-flowered tickseed), C. lanceolata (lance-leafed tickseed), C. verticillata (threadleaf coreopsis), and C. rosea (pink coreopsis).Coreopsis plants are extremely adaptable, easy-growing perennials. There's a good range of varieties, and their numbers increase every year through the development of additional cultivars. There are tall, fluffy forms, red and pink varieties, and even annual types.

Coreopsis

In addition to its many cultivars, the pure Coreopsis grandiflora has been gracing gardens with its bright yellow flowers for generations. It makes an excellent perennial for novice gardeners, but experienced gardeners will also appreciate its reliability, ease of growth, and versatility. Also known as large-flowered tickseed, it can grow in just about any soil, whether shallow, lean, or chalky. It's open pollinated, so it can be grown either from seed or by division, and it will also self-seed, but not to the point of annoyance. If you don't want the volunteers, deadhead the plants before they go to seed. These plants will benefit from shearing after the initial bloom fades.Coreopsis grandiflora are exuberant plants and will happily spread out in a garden. One cultivar, 'Heliot,' a Fleuroselect Gold Medal winner, was bred to stay tight and compact—perfect for a smaller garden or containers. The flowers are single with a burgundy ring around the center disk. They're not as full as the double Coreopsis grandiflora, but they bloom from early summer right through to frost, even in the first year of planting. This cultivar also benefits from shearing after the initial blooms fade. Divide the clumps every three years to maintain the plant.

Coreopsis grandiflora 'Rising Sun' is another Fleuroselect Gold Medal winner. It's unique in a couple ways: First, it begins blooming weeks earlier than other varieties of coreopsis. Then there's the flower itself. 'Rising Sun' has semi-double, fringed golden flowers with a red dot at the base of each petal. The 2-inch flowers are relatively large for the species, but the growth habit and ease of maintenance are everything you'd expect.When Coreopsis verticillata 'Moonbeam' came on the market, nurseries couldn't keep it in stock. The buttery yellow flowers were too irresistible, and then there's the foliage: thread-like wisps of green that soften the look of the garden. 'Moonbeam' is, indeed, a stunning plant. It blooms from midsummer all the way into fall. Although this cultivar shares its species' ease of growth, it tends to be less long-lived than most, often disappearing from a garden within three years. Then again, it's been known to travel a bit and pop up in another part of the garden. It's impossible to say how 'Moonbeam' will perform in your particular garden, but it's worth a shot as it blends well into any garden design. (Source: www.thespruce.com)

 

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