I have two metal troughs attached to the wall of the house - one below a window at the front of the house, by the front door (gets sun until late midday) and the other at the back below another window (gets sun from early pm).
Any ideas for something colourful I can plant in these? Hoping it's not too late in the year?! I am willing to water them as much as they need!
Also they are just the metal frames - what is it best to line them with?