Timothy Lee landscape design The plant is a pink 'New Dawn' climbing rose. It is on a metal trellis from Smith & Hawkin who are now out of business. Looks great in the spring.
Timothy Lee landscape design not sure but a neat idea. you can certainly try it but my guess is that the concrete would be rougher on the edges unless you took the time to cut it into pieces. Let me know how it turns out and thanks for the question.