I can’t believe I didn’t think of this sooner. Plant labels for the garden made from the round aluminum pull off tops of nut and other cans. I think I saved this one from a can of cashew nuts. You can simply write on these tops with a permanent marker or you can scratch the name into the aluminum with a nail. If you scratch the name it will be permanent of course, which is great for identifying a tree. You can also label the location of the vegetables you just planted or the flower seeds you dispersed. The aluminum circle makes a nice plant label that doesn’t rust or rot. Plus the pull tab part makes hanging easy.