[azubah]

What flowering plants would be happy in an area which gets very wet when it rains?
It is on a slope so the water runs downhill when raining.
The soil is very sticky clay.

[surbie100]

Quinces - either the tree or the japonica bushes.

[Goosegirl]

Apart from willows which loves moisture and would help dry it up somewhat, actual flowering plants you could use are hostas, candelabra primroses, bog iris, and possibly contrast them with some ferns.

[azubah]

Thanks for your replies. Some good ideas there.

[Goosegirl]

Forgot to mention, dig in add some sharp sand/grit in the area before planting, not just in the planting hole but all around, or you will create a sump where even more water will collect.

[SusieB]

Quince?  I have an area that doesn't drain very well.  Can I plant my quince tree there?  I tried a cherry, but it passed away.

[New shoot]

Quince?  I have an area that doesn't drain very well.  Can I plant my quince tree there?  I tried a cherry, but it passed away.

Cherries do prefer a well drained soil, so that may well be the reason you lost it.  Quince trees like damp soil, so should do a lot better