Grieving people who have lost their loved ones, (especially those that died young) can find solace in planting a tree in remembrance.
Just the act of planting the tree brings them closer to nature, and a feeling of comfort. Also, it allows them to show their love for the one who's passed away - 'I will always remember you' . And brings them comfort in the fact that the person no longer there physically will still be there. Watching the tree grow, nurturing it, will help them get to acceptance, feel supported and not alone.