Wow, that colour is fab - what variety is it ? I haven't seen one in the UK with a purple centre.
Rudbeckia Fulgida. A little smaller than most & will bloom from now through October.
Beautiful color. I like your depth of field. My eye goes right to the purple. The out-of-focus pedals do not detract at all, IMO. Good job.
Paul S
Kaye here is a link to a garden site featuring this Rudbeckia
The center only is purple in the early blooming stage, it turns darker as it blooms
http://www.bluestoneperennials.com/RUFF.html
Great thanks and I've found a UK supplier - I shall be purchasing.......
Happy I could help you Kaye. One thing to note, these plants seed all over the place, so unless you want a million of them, make sure to cut them down after bloom.