Where can you find these trees in UBC? can they be located in the Botanical garden? Western Red Cedar, Western Hemlock, Doug Fir, Sitka Spruce, and Amabilis Fir.
Try the native plant section of UBCBG. I'm not sure about Amabilis Fir, but the others are all there. It's in the NE corner of the gardens.
I've never been to Botanical Garden before, where is the NE corner located in the garden? Do you mind post a map of the location?
When you pay to enter the garden, they'll give you a map or show you on the map where that area is. You can find the map on the Garden Maps page. The BC Native Garden is H on the map.