Ogham
Fern is the alder, and the Bríatharogam calls it the vanguard of warrior bands because shields were made from it. Alder takes a blade without splitting. It is also the wood of milk pails, chosen because it holds what is poured into it and does not rot when kept wet. This week the reading is about whatever is absorbing pressure on your behalf: a routine, a reserve of money, a colleague, someone at home. Something is taking blows so that you do not have to, and it is working, which is exactly why nobody is looking at it. Look at it. Ask whether the shield is being maintained or only relied on. One practical repair now, or one plain thank-you, is likely to cost far less than replacing the thing after it finally gives.