How to Fertilize Asplenium scolopendrium (Undulatum Group)?
Very dilute fern feed monthly during warm active frond growth
Asplenium scolopendrium (Undulatum Group) · Asplenium scolopendrium (Undulatum Group)
Grow outdoors in humus-rich, moist but well-drained soil. Prefers alkaline or neutral soil conditions. Bright midday sun can cause damage. Water moderately when in growth, water sparingly over winter. When in growth apply a half-strength balanced liquid fertiliser monthly. For full cultivation notes see our advice web page how to grow ferns
Very dilute fern feed monthly during warm active frond growth