There are lots of different gingers to keep straight, starting with a memorable one that was a part of the band of misfits stranded on Gilligan’s Island. Horticulturally speaking, however, ginger refers both to a group of plants in the Zingiberaceae and Aristolochiaceae (birthwort) families. Hardy members of the Zingiber family are plants who mostly flower in the heat of summer, while the wild gingers (asarum) of the birthwort family tend to be mostly winter/spring flowering.
So, while it’s late winter/early spring, let’s focus of the woodland perennial genus asarum, of which we currently grow 86 of the known 177 asarum species/subspecies. In late winter/early spring, we like to remove any of the winter damaged evergreen leaves, which makes the floral show so much more visible. Few people take time to bend down and observe their amazing flowers, so below are some of floral photos we took this spring. View our full photo gallery here.
We now have so many aspidistra (cast iron plants), that there is at least one species flowering virtually every month of the year. Winter still has the most flowering species, and here are a few that are currently blooming in our collection. Most folks don’t see the flowers because they either don’t know to look or plant their plants too deep, so the flowers form underground. We like to snip off some of the oldest leaves for a better floral show.
Aspidistra fungilliformis ‘China Star’ is a Chinese collection from Jim Waddick
Aspidistra tonkinensis is a Dylan Hannon collection from Vietnam…not enough to share yet, but soon.
Aspidistra sp. nov. is an Alan Galloway collection from Vietnam. We thought this was Aspidistra lutea, but we now think it may be a new undescribed species. This one offsets slow, so it may be a couple of years before we can share…hopefully by then we can get this named.
Aspidistra vietnamensis…a Japanese selection. Most of the plants in the trade in the deep south which go by a variety of species names are actually this newly described species. We’ve had plants like Aspidistra ‘Ginga’ keyed out previously by the world’s authorities as either Aspidistra elatior or Aspidistra sichuanensis, but to us, they never quite fit into those species. Now that Aspidistra vietnamensis has been published, we finally have a match.
So, how do we figure this out? Our staff taxonomist, Zac Hill has become an expert on aspidistra by dissecting the flowers. Yes, leaves, growth habit, and rhizome are important, but it’s all about the flowers. The first image below shows the anthers inside the flower, and the bottom photo shows the stigma. Minor differences in the shapes and orientation are used to distinguish one species from another. We have other collaborators in the UK, France, Germany, and Russia with whom we share images and identification thoughts.
There are several of us that travel around the world to find these new species, and then work to get them into cultivation for the purpose of ex-situ conservation. We hope you’ll try some of our amazing offerings.