I love your tree, it's amazing. You've inspired me to give it a go but haven't a clue what I'm doing. I've never tried anything like this before. My garden wall looks to be about the same size as yours but it's not quite flat, there are some bumps and lumps on it? Did you use all tiles suitable for outdoors? With the winter weather we've been having do I need to make sure the tiles are all frost proof?
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