Wall Daisy / Mexican Fleabane (Erigeron karvinskianus)
/For a non-native plant in UK, originally from Central America, it manages to survive very effectively on our boundary wall, spreading to the patio and any planters in the vicinity. It flowers all summer and is usually much loved by insects, especially the smaller hoverflies. The current cold, damp weather is making for a good show of flowers, but at present not such a good show of insects.