I have a friend not on this forum, he lives about 6 miles from me, and he cannot grow any ginger except COstus in his yard. Every other genus he plants get immediately mowed down. He suspects squirrels, but I have literally hundreds of hedychiums, curcuma, zingibers, costus in my yard, and we have deer, raccoons, squirrels, rabbits and opossums, not to mention wild pigs, and they have NEVER touched any of my gingers. I told him to get a motion activated camera to catch the culprit.