Putting a bunch of flowers on a grave
Question

                Does putting a bunch of flowers on the grave of the “unknown soldier” come under the same ruling as the actions of those who venerate their “saints (awliya’) and righteous people until they are worshipped?
Praise be to Allah.
    This action is an innovation (bid’ah) and exaggeration about 
    the dead. It is similar to the actions of those who venerated the righteous 
    and made symbols (of the dead). There is the fear that this may, with the 
    passage of time, lead to building domes over their graves, seeking blessing 
    from them and taking them as gods alongside Allaah. So we must not do that, 
    in order to avoid the means that lead to shirk.