Rudbeckia, Heliopsis, Asters, some Sedums (Autumn Joy), Liriope, Nerine bowdenii, Heliopsis, Solidago, Solidaster, Dahlia and Cosmos are some. Also some spring flowers may have a second show in autumn, such as primulas/primroses/polyanthus. Others like Verbena bonariensis will still be flowering from early summer. Clematis viticella varieties will flower from July until first frosts.

Autumn flowering crocus, Colchicum, cyclamen hederifolium, there are even rhododendrons that flower in autumn.

And Camellias come to think of it, there's an autumn flowering version of those, can't recall its name at the minute.

And Japanese Anemones

......And Crocosmia, Heleniums and the Geums, which go on and on.......

I can't believe no-one has mentioned chrysanthemums......

Well, in my case because I hate their smell!

There's a ceanothus - 'Gloire de Versailles'' - that flowers in the early summer and again in the autumn. Many salvias are still going strong as well as fuchsias

thats great folks thank you for your quick response thanx