Yarn bombing has a new low-impact street art friend, and it’s moss graffiti. This DIY guerrilla gardening art is so cool we can barely stand it, and it’s right up our alley (GET IT?). Not only is it beautiful, but it’s a living, breathing thing that can help with air quality and bring greenery to the concrete jungle. We’re going to teach you how to moss bomb on your own. For the record though, you should only do this on your own property because vandalism is still vandalism, even if it’s cute vandalism.

Here’s how it works:
 – 3 cups of moss (gathered and washed so there’s not too much soil in there)

– 2 cups buttermilk or plain yogurt

– 2 cups water or beer

– 1/2 tsp sugar

– a bit of corn syrup (optional)

Using a blender, mix up the ingredients until smooth. It’ll end up with a paint-like texture. If it seems watery-drippy, add a bit of corn syrup until you have a good consistency. Then use a paintbrush to paint your moss design the same way you’d use regular paint. We recommend using a stencil, unless you’ve got a really steady hand.

After this, your work of art is going to require a bit of maintenance, especially if you live in a dry climate. After that first coat, check back weekly to spray the design with water or to apply more moss-paint. Depending on the climate, it could take a lot of patience for this thing to grow… but it looks like it’s totally worth it. And you could apply the same principles to come up with some pretty adorable decor for a wedding, event or even just your living room.

Have you tried moss graffiti or any other guerilla gardening before? Let us know in the comments!

(h/t Designboom and Wooster Collective)