Posted: 15/03/2016 at 18:08
Could you comtinue the curve (this end around the tree) gradually to meet up with bottom curve? A gentle curve overall?
Think I would put some winter heathers around the tree.....foxhollow with yellow foliage tipped red on new growth in spring and early summer or Ann Sparkes with orange red foliage or Vivelli with dark, almost black foliage. For the whole of the winter mine stand out. The colder the winter the more coloured is the foliage