Sent Potted. Found in the Oregon and Northern California, often in mountainous areas, the Cobra Lily is one of the most spectacular pitfall traps, with the appearance of a striking cobra. Pitchers up to 90cm tall.The maroon and green flowers look a little like a Snakes Head Fritillary. A vigorous plant that will soon colonise large containers with its quick growing rhizome, new plants sprouting out the edge of the pot. Hardy down to13degrees C (at our nursery). Grow in dappled shade and avoid midday sun. Try to keep the roots cool. We always use rainwater. Not for the complete beginner. Compost 6:2:1 peat:perlite:sand.Frost hardy if sheltered.