Robin wrote, I buy 5" labels from OBC Northwest in Canby, Oregon. You can also get >shorter labels. They ship just about anywhere. I'm assuming those labels >are Macore. I've used pencil for 20+ years on these labels. As far as I >can tell, they have always used the same supplier and the quality has >improved, specifically, the uv resistance. I find labels written in >pencil from ten years ago that are still quite legible. Macore is in >Lafayette, Oregon, if I remember correctly, and I would suggest contacting >them directly. I use these labels too, because they're readily available here, but they become brittle after about 3 years exposed to sunlight. I usually bury the pencil-written plastic label in the pot and use an embossed aluminum Dymo label for above-ground use. The Dymo metal labels are expensive and tedious to make, but they will outlast any plant. Jane McGary Northwestern Oregon, USA