How to build a Terrarium-a fun, quick DIY from The Yumiverse! I think I'd like to do this with my apothecary jars, fun to do with my kiddo and then I can put them somewhere they will be less likely to be smashed.
Add 1 tsp. of liquid food coloring to 1 cup of water. Drizzle the colored water onto the soil surrounding the base of a plant. Wait 24 hours for the water to absorb. Apply another identical dose if the color change was not sufficient.