It is the traditional practice of planting a tree near a grave in Pakistan. By planting a tree, it is believed that the positive energy of the loved ones lies in the trees. In my opinion, this is the only way of connecting yourself with the dead ones and with nature.
Now most of people have neglected this traditional practice and started using brick and stone for the tombs/ graves but still we can find trees near every tombs/ graves.These trees are thought as sacred and will never be cut down.
This photo has been taken by me from Sahiwal. I was just passing by this graveyard and this view fascinates me so much that I can't stop myself from taking this image. I don't know anything about this grave.