Implementations provide an expandable vertical garden system comprising a frame； drip irrigation pipe(s)； drainage pipe(s)； a drain tray； and optionally pots or plant containers. The frame of the expandable vertical garden may comprise: holes for inserting screws which get drilled into the support wall/framework； cavities wherein pots can be snapped in and snapped out； a support element in each cavity for the pots to get good anchorage； small holes above each cavity, wherein clips to hold a horizontal irrigation pipe can be fixed in； a large hole at the bottom of the frame for inserting the drain tray； a cavity on a rear side of each frame wherein the drainage pipe can be fixed.
