Lichen on gravestones Lichen is very slow growing. It helps that it often grows on stones with dates carved into them. It gives a different sense of the passage of time and the passage of lives. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to email a link to a friend (Opens in new window) Related Feel free to leave a Reply :) Cancel reply