replacing pin oak
We have a pin oak in our backyard and recently learned that because of its multiple leaders (there are three), it is structurally unsound. But it is the focal point of our garden and gives us shade. We were thinking of gradually removing it by pruning and at the same time growing a replacement tree opposite it. We have a tiny Brooklyn backyard (20' wide). Is this a practical option? If so, what would be the best tree for a little urban garden? I'd love something that flowers.