Lay the drainage pipe in a fabric lining in the dug ditch. Place drain pipe atop fabric lining, then add gravel, covering pipe completely. Leave approximately 5" between top of gravel and ground surface.
A better way to grow strawberries and other more hanging fruits and berries is to use growing boxes or tubes elevated off of the ground. You can even grow them at waist or chest level for easier growing, tending and picking. No more rotting caused by laying upon the ground while developing!
DIY - How to install a drain pipe from the gutter of your house to drain to your backyard. Pictures of the concrete, burying the pipe, digging the trench, sand backfill and PVC pipe. Material list and prices. backfill, cloth, dig, downspout, drain, drainage, gutter, material, pipes, PVC, sand, trench, underground, yard