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Purple Coneflower - http://www.gpnc.org/purple.htm
Overview of the characteristics of Echinacea purpurea and several related species as wildflowers, with photos and basic information. |
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Eastern Purple Coneflower - http://davesgarden.com/guides/pf/go/26/
Includes basic information, photographs, and user submitted comments from Dave's Garden. |
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Discover the Versatility of Purple Coneflower - http://www.findarticles.com/p/articles/mi_m1082/is_n4_v42/ai_20912188
Cultivation and lore from Flower and Garden Magazine. |
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Yellows Disease of Purple Coneflower - http://www.ipm.iastate.edu/ipm/hortnews/1998/7-24-1998/yellows.html
Description and control from Horticulture and Home Pest News. |
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Echinacea purpurea 'Magnus' - http://www.gardenlady.com/echinacea.html
Includes photographs, pros and cons, and suggested companion plants from GardenLady.com. |