I think the main reason I’ve never grown dahlias before, is because they are a tender plant. Meaning, they more than likely wouldn’t survive the low temperatures out in the border.  Once the foliage has all died down, you need to lift the tubers out of the ground, dry them out and put them somewhere frost free for the winter. To me this is a bit of a faff. As far as the ornamental side of the garden goes I prefer hardy perennials, bulbs, and shrubs. Things that once planted, just look after themselves. The other reason I was put off dahlias was thinking of them as a show plant.…