This plant is in the raised bed next to the filter house, and as a very small plant in a pot survived being frozen solid last winter. It really is quite a tough plant.
Colocasia gaoligongensis in our garden
As you can see the leaves are quite a bright green with an almost black dot in the center of the leaf plus quite a pronounced veining to them. It produces surface runners (stolons) that will spread out quite some distance from the mother plant that will grow "pups" (new plants) at the end when they anchor themselves into the soil. We have had it flower but somehow have managed to not take any photos of it before, however it produces a fairly typical aroid flower.Colocasia gaoligongensis flower illustrated on http://www.hort.net
Colocasia gaoligongensis can also be propagated by cutting off the stolons, these can be cut into sections between the nodes. Once cut they should be allowed to dry off slightly, for about a day before placing them horizontally in seed trays with a good quality multi purpose compost. They should be given a light covering of compost and kept moist but not waterlogged. If you can give them a little bit of bottom heat them they will respond well. Once the plants sprout, allow them to grow on until late the following spring when they can be divided and potted on. It will grow reasonably quickly so small new plants will get to a good size quite quickly if kept moist and well fed.
I'm really hoping this bulks up nicely next year and gives us a number of spare plants to put in other places in the garden.
Gaz