Why won't might Ginger lily grow? Hedychium Gardnerianum

This question was asked by
P. Colman

My Hedychium Gardnerianum ‘ginger lily’ is showing one small green shoot which has now been there for a month and has not grown. What am I doing wrong?

Hedychium Gardnerianum is a later flowering plant, usually towards August – September and sometimes they can be more mature before they actually flower. Once established they will flower each year. They also like a well-drained soil and plenty of sun but need protecting over winter.

Loraine Hart