Sometimes our trees are indoors. For example, this is an avocado I started from a pit. It was the biggest pit I had ever seen and it's the fastest growing avocado I ever had. I decided to pinch off the top and let it grow branches at 6' (1.83 metres). This lets me continue to walk under it! Is it staring at the trees outside the window?
I have some rather large plants in this room. In the top right corner of the photo, below, is my euphorbia, slightly pot bound and I'm dreading repotting it.