Hi all! My Dad asked me to ask about a horseradish that my mother planted. He would like to know when the best time to dig it up would be and can we dig up part or does it need to be all? Can we replant what we don't need? Can I use the leaves for anything? I rather not kill the whole plant, but I know nothing about growing horseradish. Oh BTW, It's been in the ground for around 10 years Thanks, Diane diannesalts@attbi.com