Shell Ginger

Alpinia zerumbet 

Common names: Light galangal, Pink porcelain lily, Shell flower, Shell ginger, Variegated ginger, Butterfly ginger.

Each pod will open to unveil  a pretty yellow flower with a red striped throat.

Native to eastern Asia, this plant is a rhizomatous, ever green tropical perennial that grows in upright clumps 8-10 feet tall in tropical climates. In more typical conditions, it reaches 4-8 feet tall in the green house, and 3-4 feet tall, as a house plant. It is called a shell ginger or shell flower most commonly, because its individual pink flowers, especially when in bud, resemble sea shells. (more from wikipedia here)