Because of high winds and my nerve giving out (as well as consideration for my neighbours' sheds and fences) we have had to remove a conifer which I planted 45 years ago. Having shed my tears for this beautiful tree I now want to look on the bright side and think of what can grow up the 8ft trunk I have left. It has a rockery round it with some nice plants, but what can I grow up it to create summer colour and winter interest? The ground is basically chalky, the garden sunny. Any suggestions would be much appreciated.