July 20th – People seem to think I’m negative about buddleia, but I’m not really. It’s a beautiful purple shrub that lights up late summer wonderfully, and it’s not known as the butterfly bush for nothing – the Lepidoptera love the huge flowerhead composed of tiny, individual blooms. 

My problem with this plant – if it’s a problem at all – is that for me, it’s a harbinger of urban decay. It’s so successful in urban environments that it’ll grow well in a patch of soot in vertical brickwork. At this time of year, throughout the urban expanses of the UK you can see buddleia sprouting and flowering from derelict buildings, bridges and rail lines. Seemingly one of the first signs that nobody cares for a place anymore is that it starts flowering in purple at high summer.

You can’t blame the plant for that…