I'll kick this off, not that I'm much of a gardener. Firstly the cold spring left my garden very much behind in comparison to other years but the killer has been going on holiday for 2 weeks not expecting the heatwave and no-one came in to water the garden. From that a clematis completely withered and died (I thought but having watered it non-stop since returning 3 weeks ago I see new green shoots at the base). It's badly affected my hydrangeas, really small and sparse flower heads, some of the budding on my lace-cap just went black and shrivelled, another has not flowered at all. My phlox are half the size they'd normally be, the buddleia is at least 4 weeks behind in comparison with usual, the roses look spindly and sad, gladioli are barely out of the ground.. The only things that look as green and healthy as normal are weeds. I'm getting sick of watering every night and hope things recover for next year :-)
I'm in Dorset and we have had 1 day of rain in the last 2 months.