I have a job that a guy wants my to do, and part of it is fixing the mulch from washing out because of the down spouts. I think a french drain is probally the best/only option. The thing is, the beds are between the building and the sidewalk, and the amout of plants limted space for the drain. Because of the limited area I am scared the drain will not work correctly. I was thinking of making the drain shorter but deeper but there is not telling what is under the top layer of dirt. If i make it long it would have to go through a bunch of turns around plants which I don't think would be good etheir because the roots would mesh up the drain over time. Any option would be great. They can be how to make the drain work, or a diffrent option all togetheir, I am open to everything, thanks.