Plant Labels from the Essentials Range by Burgon & Ball of the UK features six wooden plant labels in 3 sizes, ideal for marking large plants or vegetables, labelling in plant pots and keeping a record of your seedlings.
These classic plant markers are made out of FSC certified beech wood. Just use a regular pencil to mark and then lightly sand off to re-label.
N.B. avoid magic markers as they are more difficult to erase.