Can I Plant In A Tree?

Question

I just received my first clematis (Moon Glow). I’m in zone 8A and I have a huge oak tree in my backyard. It has a hole along one of the branches going down to the base of the tree. The hole is well draining. Could I fill it with sand or pebbles and then peat moss and compost and plant it in there?
I could attach chicken wire on top to keep the squirrels away.
What are your thoughts?

Answer 1

This is very difficult to do without causing disease and damage to the tree. I don't recommend this.

Here are some articles on clematis that will help you to grow them properly: https://www.gardeningknowhow.com/category/ornamental/vines/clematis