How to Fertilize hart's tongue fern 'Angustatum'?
Very dilute fern feed monthly during warm active frond growth

hart's tongue fern 'Angustatum' · Asplenium scolopendrium 'Angustatum'
Grows well in humus-rich, moist but well-drained soil. Bright mid-day sun can cause damage. Tolerant of dry shade but water regularly during the first season and mulch well
Very dilute fern feed monthly during warm active frond growth