You could place a trellis in the back if it has legs to push into the dirt. I have not come across any redwood trellis that I could recommend, but we are currently in the process of designing a redwood trellis that is compatible with all GroGardens raised garden beds (and would slip into the dovetail joints), but do not currently have one available on consumer websites. If you are interested in purchasing one now, please contact us and I will be happy to provide a custom order. Thank you!
GroGardens