Jean has posted a comment in another topic which I'm sure you will agree deserves this dedicated topic.
An extract from Jeans posting:
This year in Mid Wales we have had a VERY wet summer, I know all over UK it has been wet but trust me here when we say VERY wet we mean it. The strangest plants have done well in the late sunshine of Septmember : Penstemons have bloomed all summer but the most amazing success has been the large oak tree which produced so many acorns the grass is covered with them. Is this to do with the extra rain?
The original posting is still in place to allow members to comment about acorns. This new topic is to widen the scope.
Since it is possible that we might have to adapt to wetter summers, it might be a good idea to gather feedback from our members on what plants did well this very wet summer.
My observations are exactly the same as Jeans with Penstemons. They did very well indeed, and are still going!
I can add Dahlias to the list. They are blooming very well at present in my garden.
My display of Begonia semperflorens were surprisingly brilliant. Lots of colour all summer, and still going!
Ive tried a number of times to grow Doronicum. Always a disaster.
This year, I bought a new plant - Doronicum orientale 'Leonardo'
It was (as I thought) past its (spring) flowering time. To my surprise, it grew a heap of foliage, and burst into bloom. Not only that, I had sporadic flowers all summer!
Another new plant this year was planted in the same bed - Artemisia 'Powis Castle'
Now, Ive seen these at The Eden Project, and they were really sad looking (that was a hot spell in Cornwall)
With the rain, I thought they might suffer.
Not so. It grew like crazy! So much so, it outgrew its allocated space and encroached on its neighbours. I'll move it to give it more room for next year.
Another surprise: Anaphalis triplinervis
I split this plant and have it in three locations. Normally this plant was quite prostrate 6- 12 ins or so in height. This year they made 2 to 3 ft. Masses of flowers, and a really fine plant
Equally important - lets discuss plants which did badly in the adverse conditions.
After we've got enough plants listed, I'll pull it all together as a WPG project.
Over to you Jean, and all our members.