Regular Pruning of Young Silver Birch
I adore silver birches and, even though I don't have a space where I can allow proper growth upward or outward, I purchased a bare-rooted one last year and have already enjoyed the dancing leaves and beautiful autumn colour. I know I will destroy the natural beauty of the shape of this tree by keep pruning it, but I need to know how best I can keep it at around 10 ft, allowing for annual growth. So long as I won't kill the tree, I don't mind a shape different to the norm because, even at a low height, it attracts gold finches, etc and many insects, beside being very beautiful to look at. Many will say I should get a different tree, but I love this one. I was thinking along the lines of topping it to approximately 6-8 ft this time of year, and reducing the branches to, say, 3 ft (allowing annual growth of 3-4 ft). It has reached 8ft in the first year. Any tips on pruning?