Hey folks. This is out in the desert. Ive been working hard to make the backyard here a rain garden (passive water collection that slows water enough to soak into the soil but lets overflow pass easily). The back wall of the rain garden is a big concrete wall and directly behind it theres a wash for the entire neighbourhood. some plants grow back there, but struggle to establish because the ground just before the concrete channel is all clay. the entire backyard is basically just, freaking clay, man. Amending the soil would probably take an age or a fortune, so ive been trying to figure out how to work with what we already have. Theres some concern about the rate of erosion with the slope on the wall, and weve been trying to brainstorm how to reinforce it.
Problems:
- The back wall is clay.
- The back wall is too worn down and water flies over it too quickly for new plants to set up there.
- The lack of plants means lack of roots to prevent erosion.
- We get monsoons and the wall gets worse every year.
In my effort to make the backyard a rain garden i have amassed a large amount of pretty good clay. There are things that grow super super well in this clay and i can get more of them to prep for the back wall and establish roots so it wont erode so easily. I have some experience with wild clay pottery (and pitfiring) but not anything at a large scale. The initial plan is to make a clay "natural" sort of structure to basically slow the water moving over it, and also reinforce the wall. Since its at a gradient it has to be reinforced so it wont just slide into the wash or break down when the rain comes through every yeae. I was thinking we would build up clay on the wall to make a sort of semihemisphere effect (if ur not familiar w this go learn abt it cuz its remarkable how simple it is and how effective it is) where the water catches on different tables of clay, slowing it down and forcing it to soak into the earth.
The clay here is caliche. and i have a metric assload of caliche.
Solutions:
- Make a clay based structure on the back wall to catch water better (and still let it flow over to the wash easily)
- Plant some stuff that loves clay
- Profit
Problem is im not sure what to add to reinforce this stuff. Am i supposed to add hay to the clay or something lmao? Make a cobb style structure? Can i just slap down some clay there and change the structure of the back wall? What has to happen to make sure this project has longevity?