Retaining Wall and Drainage advice
I am building a very small retaining wall in my backyard. We are going to use the Pavestone Windsor Wall at 2 feet tall. I will continue the wall along the back of the house, then around a tree (removing an existing limestone circle). The total length of the wall is about 75 feet.
I am at the point where I am about to buy materials for it and want to run it by someone before purchasing.
The wall bricks are 11 5/8 inches wide. We intend to do a base of around 22 inches wide, 5 extra on each side.
We have a lot of clay in our yard so I intend to put gravel fill behind the wall. For such a short wall I feel like 5 inches should be plenty wide? I also think I will put a slotted drainage pipe with sock behind it to help with water issues.
From what I understand you should put down landscape fabric, lay 2 inches of gravel, lay the drainage pipe, and
then more gravel on top. Then wrap the landscape cloth over the top? Is this correct? Do I also need landscape cloth against the clay where it turns into gravel?
Finally on a 2 foot wall how high do I bring the gravel? Up to the final brick? That would be 4 inches of dirt on top?
Final question, we are wrapping the wall around a tree and removing an existing limestone wall. The existing limestone wall was about the same height and had zero drainage on it. Should I continue the rocks and drainage sock behind the wall where the tree is? My wife seems to think we would want water pooling there for the tree, but I am not sure it was done correctly.
Sorry for the wall of text, but I am getting the last minute jitters before finishing the project.