douglas fir cones, very distinctive strands on them, from a

douglas fir cones, very distinctive strands on them, from a large arboretum tree growing in zone 3 MB, at the frank skinner arboretum. picked up some old cones, after drying in the dehumidifier happy to find seeds were still inside.. so will try growing a few next spring. some research into rocky mountain douglas fir turns up that the most cold hardy selection could be zone 3/4, so this surely is what I've got. maybe just needs to grow in a shelter spot.