Seeking advice on building brick raised garden bed on slope
This is the first of what we imagine will be many posts. My husband I are are attempting to build a raised garden bed out of decorative brick. The bed will be used for urban homesteading - edibles and flowers. Our yard is quite sloped at the end (you can get a reference in the photos from the slope of the fence). What was intended to be a 12 inch high bed at the flat end of the yard, has turned into quite a tall wall at the sloped end. We did a great job of building a level, in not entirely straight wall last weekend. However, we are now concerned that the wall will topple over once it is filled with the weight of settling dirt.
Our question: Do we need to secure the brick with a smear or mortar or silicone? Would lining the inner walls with landscaping cloth be enough?
Thanks in advance for any advice.