Double Hibiscus

I love these long sunny days where you can sit out at night in the warmth. This summer has been incredible. So many hot sunny days - some days maybe a bit too hot, but mostly really wonderful.
The Shrewsbury Flower Show should have been in a couple of weeks and that has always been the benchmark for the end of the summer and the nights 'drawing in'. There is no Flower Show this year, so how will we know when the end of Summer is?