Description
One of the rarest of the Japanese Trillium, hardly ever seen in the wild and we do not know of any other correctly named plants in cultivation, let alone in commerce.
This is a natural hybrid between Trillium tschonoskii and Trillium apetalon, which occurs sporadically on the Japanese island of Hokkaido. This is the only place in the world that this is found.
The plant itself is somewhat intermediate between the parents, but has pink-red flowers which possess both sepals and petals (unlike apetalon). It flowers in April and May on strong growths above broad, plain green foliage.
It does well in a humus-enriched soil in light shade and is capable of making very good growth and large rhizomes in time probably since, both in the wild and in cultivation this plant is seed sterile. It is apparently triploid and it makes small, empty, triangular pods even when carefully pollinated. It may however be possible to cross it back to either parent, something we have not tried.