I've yet to have any success with ginger (or turmeric for that matter) in my dry climate. I know others who do well with it here, but they are probably more attentive gardeners than myself and keep the moisture up better.
I've featured your post in this week's Garden Journal Weekly curation round up.
RE: PLANTING GINGER FOR EATING - In AUSTRALIA - Growing one of my more expensive delights GARDEN DIARY 3