Having worked in botanic gardens, I agree that sometimes displays can look like a collection of tags rather than plants. It is not something that you can easily get agreement on amongst interested parties. If it is a display of some “pretty plants” that have no other significant value like location data or differential clone information we often didn’t tag them at all. However, where it is important not to lose the connection between the plant and the information I’ve moved to double tagging, burying a tag with the accession number (quicker to make) or with some details written out at the bottom of the pot. I have had unfortunate experiences at botanic gardens, nurseries and personal collections where small unattended children come walking up to proudly show the parents their collection of tags and it is upsetting to say the least. Birds have caused trouble with “shiny” metal pot labels on occasion. Old labels snap off and end up being picked up and put back incorrectly by well meaning visitors or volunteers. In flats, even typically careful and knowledgeable individuals can stick the tag back into the adjacent pot. I always match up the buried tag and the visible tag when transplanting. Buried tag has precedence in case of discrepancy. In a display bed or large mixed pot, I place the label piece right under the rhizome so when it is eventually dug to more or divide, that tag is right there. I toyed with the idea of using RFID tags (radio frequency id) on self guided tours which would have been essentially invisible but at the time we didn’t have the funds to move forward.