Homes & Gardens - November 2014 UK: "Maintaining a living wall: Little and often helps to keep a green wall in good condition. ■ Pick off dead leaves and replace dead or damaged plants as needed. ■ Trim back larger plants, especially those that may be smothering smaller ones. ■ Check for pests and disease. ■ Most importantly, keep an eye on the irrigation and feeding system as plants can suffer quickly if these fail, particularly in hot weather."