I have a white camellia that has been growing in a pot for several years; it's now too large/heavy to move around. I'd like to plant it in the garden - your advice please, on the best location. There are two areas with enough room, one quite large and open, until recently home to a silver birch, that gets the sun for most of the day, the other in dappled shade from an acer with wisteria and honeysuckle growing nearby. Also how best to prepare the planting area, when to do it and how to provide protection in winter. Apologies, lots of questions - hope you can help. Thank you.