Wednesday, September 28, 2011

White Pines and their Needles

This is the time of year that the white pines lose their inner needles - the needles that grew last year. While the pines have looked green all summer, now they're green on the outside and golden yellow on the inner branches. In a few weeks the inner golden needles will fall off, and the pines will be back to green.

I was once asked by a worried homeowner who saw the golden needles in the fall what disease his white pines had, and what could he do about it. Before that I hadn't been aware myself that the needles of white pine trees are held on the branches for about 18 months. All the needles now turning colour are the needles on branches that started growing a year and a half ago.

Just one of the many interesting patterns you can see in nature.

No comments:

Post a Comment