Dave's Garden: Eastern Purple Coneflower
Includes basic information, photographs, and user submitted comments.
Flower and Garden Magazine: Simple Pleasures: Disc
Cultivation and lore.
GardenLady.com: Echinacea purpurea 'Magnus&ap
Includes photographs, pros and cons, and suggested companion plants.
Horticulture and Home Pest News: Yellows Disease o
Description and control.
Production of Purple Coneflower as a Cut Flower
Includes cultivars, propogation, insects and diseases.
Purple Coneflower
Overview of the characteristics of Echinacea purpurea and several related species as wildflowers, with photos and basic information.