Skip to Main navigation Skip to Left navigation Skip to Main content Skip to Footer

University of Minnesota Extension

Extension is almost done building a new website! Please take a sneak peek or read about our redesign process.

Extension > Garden > Diagnose a problem > What's wrong with my plant? > Annuals and Perennials > Purple Cone Flower (Echinacea) > Distorted leaves

Print Icon Email Icon Share Icon

Purple Cone Flower (Echinacea) > Distorted leaves

1 of 2
  • Image: aster yellows 1
  • Image: aster yellows 2
  • Image: aster yellows 3

Aster Yellows
The Aster Yellows Phytoplasma

  • Leaves and stems may be yellow, stunted and spindly
  • Flowers are small and distorted, petals may remain all or mostly green
  • A brush-like mass of weak shoots may arise from the stem
  • Occurs most often in mid to late summer
  • More information on Aster Yellows...
2 of 2
  • Image: Herbicide 3
  • Image: Herbicide 1
  • Image: Herbicide 2

Herbicide Damage
Phenoxy herbicide ex. 2,4D

  • Leaves are twisted, cupped, or distorted
  • Leaves may appear thick and leathery
  • Veins in leaves are thick and close together
  • Side of the plant closest to the herbicide application is most severely affected
  • In severe cases the entire plant may be affected

Don't see what you're looking for?

  • © Regents of the University of Minnesota. All rights reserved.
  • The University of Minnesota is an equal opportunity educator and employer. Privacy