Tall yellow daisy-like perennial...

...blooming right about now. It's at least 4 foot tall, blooms with bright yellow daisy-like flowers, held on slender stalks which look a bit like Rudbeckia, although not the "black eyed" variety.

A neighbour has them in her garden and she thinks they might be Asters, but I don't think they are, more Rudbeckia? I could get a pic, but wandering around with a camera isn't always appropriate!

Anyone any ideas or ID?

 

There are a fair number of perennial sunflowers which would fit your description. Helianthus occidentalis for example.

 

Just looked up Helianthus and it sounds like it's them - height, colour, time of flowering and reliability! Thanks.

 

Could be Helianthus - or it could be Rudbeckia 'Herbstone' if it grows more like 6ft and has a prominent centre to the flower like an Echinacea

 

No, it's less than 6 foot (although not much). The leaves look like Helianthus as well.

 

What about Corn Marigold? It's still flowering at this time of the year.

 

I would think Rudbeckia at this time of year. They always manage to put some colour in your garden when most things are past their best.