Among the most frustrating things about gardening are the mystery plants remaining when their tags fade away from sun and rain. The fix is embossable tags, but the cost of buying them is prohibitive if you use a lot, as I do...
Name: Anne Summerville, SC (Zone 8a) Only dead fish go with the flow!
Instead of using cardboard I now use plastic. Just go to the Dollar Tree and buy one of those plastic 3 ring binders and use that instead of cardboard. Lasts longer and doesn't get mushy.
Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
Douglas Adams
For those who make tags by recycling metal soda cans... I bet you could sandwich the metal from the cans between pieces of HVAC tape and do away with the sharp edges.