Torch ginger (Etlingera elatior) is delicious, and I have found the leaves to be edible while you're waiting for the flowers. But, it seems to need more water than my area has in the dry season. Mine died down, even with occasional watering. They were really happy in the rainy season though. Hoping they come back!
Anyone growing? The flowers are beautiful, and used as a vegetable in Mayalsian and other SE Asian cooking.
Note: they are apparently prone to potassium deficiency, so a little supplementation with bananas, coconut water, etc. would be beneficial...