More re deformed Echinacea flowers:
The group of three Echinacea 'Hot Papaya', in my posting of April 3, 2013 above, is now producing deformed flowers.
See picture taken yesterday, below.
Checked my records. They were planted June 12, 2011.
Re any possibility of disease, notably aster yellows, all three plants look very healthy.
It's only the flowers which are deformed.
Am thinking it could be a case of rushing potential cultivars to market too soon.
Other recent/current examples being Echinacea 'Big Sky Series' and Phlox paniculata 'Peppermint Twist' and P. paniculata 'Twister'.