Sending a living plant to someone is one of the best gifts to give. Not only do plants freshen up any space and add a touch of green decor to the home, but they also clean the air and provide proven mood-boosting benefits. On top of that, a plant can be seen as a metaphor for your long-distance relationship. As your partner waters, feeds, and nurtures the plant, so too is your relationship being nurtured so it can thrive. Plus, plants live a long time and when you and your boo finally move in together forever, the plants can be a symbol of your love for each other.