My original piece of Farfugium japonicum ‘Giganteum’ (then known as Ligularia tussilaginea ‘Gigantea’) came many years ago, from a friend at a New York City public garden. Summers, it was lusty and bold, growing mightily in a pot and showing off like crazy. But I could never make the plant completely happy in the offseason, or so I thought, and after torturing it in my house one winter and in my basement (trying to force dormancy) the next, I gave the exhausted creature to a friend with a greenhouse.I kept his likeness here with me, and I guess I pined for him: A mid-century tray I’d bought at at antiques store bore an image of Farfugium, though not to scale. The plant bears ultra-shiny leaves that get to about 15 inches across.When I saw its shining face not long ago in the Plant Delights catalog, which credited the same person I’d got