Make your own kokedama, the pot-less houseplant from Japan! Kokedama moss balls have been popping up in florists and style magazines around the US, and now you can make one to take home with you. The technique, in which a small plant is encased in a ball of bright green moss, grew out of Japan’s bonsai tradition. Like a mini-Japanese garden, these cute moss balls can be placed on a decorative dish or hung from the ceiling to add a touch of whimsy to your home.