White Herb Pot Markers. When you plant seeds or set cuttings, the plant signs help you to keep track in the garden. Made of robust plastic, the garden labels can be written on with a marker or the enclosed pencil. To reuse the herbal signs the year to come, clean them easily with a damp cloth and detergent. The white plant labels are perfect for the herb garden on the balcony or the vegetable patch, 300 piece.