We built a passive house near Langara College and need a shade tree in the south facing back yard. There isn't a lot of space back there with the laneway house, walkways and sump. I like the idea of getting some food from the tree, but if the walnut tree is a maintenance nightmare I can abandon the idea of food. The house definitely requires shade. It gets pretty warm in the summer. We are just heading in to fall now and the temperature in the house is nice so it would be good if the tree dropped its leaves earlier in fall. The tree must come from COV replacement tree https://vancouver.ca/files/cov/replacement-trees-instructions.pdf I have never had to pick a tree, but I think my priorities for the tree are: 1. Shade 2. Low maintenance ie. not aggressive roots 3. Food 4. Fall colour 5. Native I really don't know much about choosing a tree so my priorities could be easily changed by knowledge and direction for a tree that would work in the space we have. Any ideas on choosing the tree?