Looking for some ideas please. We've had a new patio laid and I'm going to dig a small border along the front edge which I want to fill with some low-level (1-2 feet) flowering shrubs, preferably evergreen, and something easy to look after and readily available in most garden centres. Our soil is quite heavy clay, but I can dig it out no problem as it's only a small area. I'm hoping to get something that will flower for most of the summer.
Thanks