Native to Eastern Asia, Alpinia zerumbet (Shell Ginger) is an amazing addition to any permaculture garden. It thrives with very little water and deep shade.
It is edible, with the leaves being used to wrap rice dishes and rice cakes. Tisanes are made with ground leaves, stems, and roots. It is considered to have many antioxidants and to lower blood pressure.
According to
this study, Shell Ginger has many effects including antimicrobial (against E. coli), antiparasitic, insecticidal, anti-cancer, antiproliferative, antiinflammatory, analgesic, antiallergic, neuroprotective, and antioxidant properties. It has a proven efficacy against HIV virus and against neuroaminidase enzymes (Influenza viruses). Phytochemicals in Shell Ginger inhibit oxydative stress in adipose cells, and contribute to lipolysis. The phytochemicals also decrease intracellular triglycerides, which limits fat cell production/growth. A chemical in the roots called labdadiene inhibits glycation, preventing glycation related diabetic complications. Essential oils, specifically terpenin-4-ol, relax smooth muscles and decrease blood pressure.
Apparently Shell Ginger is the local superfood that no one knows about! And here I am telling everyone. The superfood outside the back door...
Propagate gingers by lifting the rhizomes and dividing them. Plant the rhizomes at the same depth ad the parent plant, or closer to the surface when in doubt. It should be about as deep as the rhizome is tall.
It has been my experience that all gingers hate being disturbed, and may look poorly for a year or two after dividing. One source says that after a Shell Ginger produces flowers/seeds then thay stalk can be cut to the ground and the rhizome will send up a new shoot. If you do any cutting, the stems and leaves make great rabbit food. Indeed, they think it's a treat! The cut leaves also have a wonderful aroma, not unlike a mixture of cardamom and ginger. Not too bad in a smoothie either.