Seedfork said:.............if the string will not rot still the seedling is large enough not to need the tag anymore.
If you have access to the cotton string they use to sew up feed sacks, it will last for multiple years. I learned that by using the sacks under areas and then laying mulch over the layers of sacks. The sacks are mostly completely gone after one growing season, but years later those strings are still showing up undamaged. I thought that since they were cotton they'd rot quickly. Not so. Now when I use layers of sacks, I go to the trouble to remove the strings.
