DIY Kokedama String Gardens | Martha Stewart Living - Being a flower school, our students and staff are always on the lookout for the latest trends. Over the last few years, the Japanese art of Kokedama has become increasingly popular. Kokedama means literally, "moss ball," and it's easy to see why! These cute plants have their root systems removed, introduced to new soil, bound and bonsaied into a neat little ball. The greatest part about this DIY project is that anyone can do it!