You can never have too many trees on a layout! At least, that's my view for the Manitoba & Minnesota Sub. I took advantage of some time off to make about 25 more trees out of my favourite source material, Spirea, and used them to fill in some areas and replace trees I was no longer happy with in others. This included making my "tree tunnel" even thicker. Photos and info, including how I made them with ground foam and hair spray, on my blog at http://cprailmmsub.blogspot.ca/2015/07/making-more-trees-for-m-m-sub.htmlI also use Sedum and Yarrow to make trees. How do others do it?John Longhurst, Winnipeg