An apparatus comprising a bracket, and a device for connecting to the bracket. The bracket may be one of a plurality of brackets for placing a plant box on. The device may have a first portion having an opening through which a fastener can be inserted to connect the device to the bracket. The device may have a second portion connected at an angle to the first portion. The device may be sized so that when connected to the bracket by inserting the fastener through the opening, the second portion of the device fits snugly within opposing sections of the bracket, such that the second portion has a length which is slightly less than a distance between the opposing sections of the bracket. The apparatus may further include a railing situated so that a cross section of the railing sits in between a space between the device and the bracket.