I have who big troughs in front of my new place approx. 4'x3'x3' (LWH) and was wondering if anyone had any ideas as to what to put into them. I was thinking about putting herbs in the back and aesthetic plants in the front of them so they are functional while still appealing to visitors. I was thinking of flowers and some crawlers for the front but I don't know what kind. I know it's better to combine plants that mature in different seasons so it looks good year round but have no idea what. Any advice?