Coneflower

Plant coneflowers in spring or early fall in full sun with well-drained soil. They tolerate a wide range of soil types from sandy to clay, but consistent drainage is critical to avoid root rot. Space plants eighteen to twenty-four inches apart to allow for mature clump size. Water deeply at planting and keep soil consistently moist during the first growing season while roots establish.

Once established, coneflowers are remarkably drought-tolerant and need supplemental water only during extended dry spells. Apply a two-inch layer of mulch around plants to conserve moisture and suppress weeds, keeping mulch a few inches away from the crown. Feed lightly with compost or a balanced slow-release fertilizer in early spring. Avoid over-fertilizing, which leads to floppy stems and reduced flowering.

Deadhead the first flush of spent blooms by cutting stems back to a lateral bud to encourage a second wave of flowering. Leave the final round of seed heads standing through winter, as goldfinches and other birds feed on the seeds and the dark cones provide attractive winter garden structure. Divide congested clumps every four to five years in early spring by digging and separating the outer rosettes.

Echinacea, commonly known as coneflower, is a genus of nine species of herbaceous perennial plants in the daisy family (Asteraceae), all native exclusively to North America. The genus is centered on the tallgrass prairies, open woodlands, and dry rocky glades of the central and eastern United States and southern Canada. Archaeological and ethnobotanical evidence indicates that Native American peoples have used echinacea medicinally for at least 400 years, and likely far longer. The Cheyenne, Lakota, Pawnee, and Comanche nations relied on echinacea more extensively than any other medicinal plant, using root preparations to treat sore throats, toothaches, coughs, burns, insect bites, and even snakebites. The Lakota name for the plant translates roughly as 'it makes the mouth numb,' referring to the tingling sensation produced by alkamides in the root. European settlers learned of the plant's medicinal value from indigenous peoples in the late 18th century. By the 1880s, echinacea had become the cornerstone remedy of the Eclectic medical movement in the United States, championed by Dr. John King and later by the pharmaceutical firm Lloyd Brothers. It was widely prescribed for infections and immune support and was listed in the US National Formulary from 1916 to 1950. Interest waned with the advent of antibiotics, but a parallel tradition took root in Germany where physician Dr. Gerhard Madaus brought seeds back to Europe in the 1930s and began systematic cultivation and research. German phytomedicine embraced echinacea enthusiastically, and by the 1980s it had become one of the most researched and widely used herbal remedies in Europe. The herbal renaissance of the 1990s brought echinacea back into mainstream popularity in North America, where it consistently ranks among the top-selling herbal supplements to this day.

Coneflowers grow in a wide range of soil types from sandy to clay, as long as drainage is adequate. They prefer a slightly acidic to neutral pH of 6.0 to 7.0. Amend heavy clay soils with compost and coarse sand to improve drainage. Apply a light top-dressing of compost in early spring. A single application of balanced slow-release fertilizer at the start of the growing season is sufficient. Rich, highly amended soil can lead to floppy growth and susceptibility to crown rot.

Cut coneflower stems for fresh arrangements when petals have just reflexed back from the central cone. Choose stems with blooms at various stages for the most natural-looking bouquets. For seed saving, leave seed heads on the plant until they are fully dry and the central cone has darkened to near-black. Break cones apart over a tray to extract the small, pointed seeds. Deadhead earlier blooms to encourage reblooming, then leave the final fall flush for the birds and winter interest.

Fresh-cut coneflowers last seven to ten days in a vase with clean water and floral preservative. The sturdy stems and long-lasting blooms make them excellent cut flowers. For drying, cut stems when the cone is fully developed and petals are still fresh. Hang upside down in a warm, dark, well-ventilated area for two to three weeks. Dried coneflower cones are attractive in winter arrangements. Seeds remain viable for two to three years when stored in paper envelopes in a cool, dry location.