I am the proud owner of a beautiful but rather big kaffir lily, which I have had since it was a 'baby'. It now needs dividing and I am a bit nervous to do this. Should I basically just take a spade to it and divide it that way or is there a better way to ensure it survives. It is extremely healthy and produces lots of flowers. This plant is an indoor one which I keep in my porch. Any help would be appreciated. Thank you.