I haven't grown a tender or tropical hibiscus in my garden since the year I forgot to bring one in before the first frost and it died. The joy of growing a potted hibiscus all summer long doesn't make up for the stress at the end of the season caused by deciding between attempting to overwinter it inside or composting it. I was pretty sure I was done with non-hardy hibiscuses in my garden until last year when I toured the gardens at Ball Horticulture. I saw what I thought was an amazing Japanese maple from a distance. When I ran up to it I discovered it was a 'Mahogany Splendor' Hibiscus.