Dryopteris erythrosra help
I have some Autumn Fern that I need help with. These are located in a courtyard between a 6 story building and a 6 story parking deck. Some are in a very small bed that had drip irrigation and the rest are in 3 foot pots. The pots get water from overspray from pop up irrigation heads. The plants themselves get no direct sunlight because of the building and parking deck. The fronds start looking bleached out and turn brown. I have attached pictures some of which are not very good. Please help if you can with any suggestions. I realize I will have to replace some of these ferns but I want the new ones to survive.