I recently was given some horseradish plants (i.e. just the leaves with a few roots, not the long hard part of the plant). I have planted them in the house in a deep container. My question is, will these grow into a proper horseradish plant, as at the moment the leaves have grown from maybe 1 centimeter to at least 6 to 8 centimeters. I have looked on the internet but only find the long hard root advertised.