Adiantum pedatum (Northern Maidenhair Fern)
Ages ago my dad planted a maidenhair fern (Adiantum pedatum) in his back yard. I think he dug it up somewhere or other but I’m not 100% sure of that. It grew quite well there and when we had our house in Gaithersburg he let me dig up a piece of it and plant it in our yard. I’m glad we did that because when my parents finally got an air conditioner in their house the condenser unit went where the fern had been. I dug up a piece from our house in Gaithersburg and kept it in a pot until we bought our current house (a year later), when I planted it here. It is thriving in a fairly sunny spot outside our dining room window.