Coneflowers are native ornamental flowers that are easy to grow in ... You'll usually find them congregating on the leaves undersides, sapping the plant of its juice while the ants farm their ...

One of the people-stopping perennial plants is the giant coneflower (Rudbeckia maxima). The plant has large, 24-inch-long by 10-inch-wide, silvery, blue-green leaves that are similar in texture to ...

Planting and Care. A drawback of the coneflower is that it can be a short-lived perennial, but by providing optimum growing conditions and picking dependable varieties, you can keep the display going.

Here's a perennial sure to draw comments from even strangers. Rudbeckia 'Herbstonne' grows almost 8 feet tall and 4 feet wide. It has large, sharply lobed leaves and yellow coneflowers atop ...

The dark green, lancelike leaves have a slightly coarse texture. The plant comes back year after year. Gardeners can plant the Double Scoop Mandarin coneflower as part of a mixed garden border.

In this week's installment of "Fielding Questions," Don Kinzler answers questions about coneflower troubles, dealing with rhubarb leaves in the fall and more.

This year, the bureau (www.ngb.org) has chosen echinacea, which is a great perennial plant for us to grow on the Great Plains. It tolerates drought, heat, wind, cold and tough soils and generally ...

The most common coneflower used in perennial gardens is Echinacea purpurea, plain old purple coneflower. It is a native plant and generally reaches a height of about 3 feet – though dwarf types ...

Mt. Cuba Center, a native-plant garden and research facility in Delaware, completed a multiyear trial of Echinacea in 2020, comparing 75 kinds of coneflowers. Many of the top-performing cultivars ...

And coneflower leaves are blackening, getting holes and disappearing. ... you can move the caterpillars to another echinacea plant, McKernan said. If you must spray, ...