Last year I planted rosemary out into a circa 10inch pot in my south facing garden. It was one of those herbs that you buy in Waitrose in a small pot along with your fruit and veg, little more than a few sprigs really. I transferred it into the garden not expecting it to survive.
It's done remarkably well to have withstood the cold winter and is noticably bigger with roots which appear to be filling the 10 inch pot now. My question is, shall I plant it out into the garden? I'd rather like the scent of rosemary under my window but i). Will I kill it by planting it out? and ii). If I don't kill it will it take over the whole small border and engulf the lavender and roses I already have there?