"Voo Doo Bulb" or "Umbrella Arum" from SE Asia. Fingered, whorl-crescent lf over purple-spotted petiole (the hollow stalk); fetid liver-purple spathe; edible corms (preparation, however, remains obscure in the literature). Also known as "Devil's Tongue" or "Leopard Palm," this is winter hardy for us here in Z6 in a very protected location in the garden which has perfect drainage to avoid winter rot and a frost line never reaching more than an inch or so; however, the foliage seldom emerges before June as the soil needs to warm considerably in order to initiate the budding. We recommend container culture or winter tuber storage techniques in areas north of the subtropics for real success.
Some of you grow only indoors, some only in terrariums; many of you have hobby greenhouses; while a growing number of customers live in subtropical or tropical areas of the world. These brief codes are an attempt to suggest whether or not a particular plant will do well in your particular conditions.
If an entry has the cluster HP CGH, this means normal house plant culture will be successful if the plant is given a cool CGH moist location; however if the entry has the cluster CGH HP, you would interpret this to suggest that while Cool Greenhouse conditions are needed for total success with this plant, House Plant conditions will be adequate, while not ideal. If the cluster is HH CGH you would interpret this to mean that while in Zone 8 or below this will be winter hardy outdoor, further north it will need considerable mulch, a cold frame, or a Cool Greenhouse to thrive. And so on.×