Propagation
Place spores on sterilised sphagnum moss or peat moss and cover with glass and keep moist. The prothallus appears in 4 to 6 weeks and prick out when large enough to handle. 

It is easily transplanted during spring, reduce foliage and keep moist. 

Botanic information
Leaf: The dark green fronds are tripinnatifid with a lacy appearance up to 3 m (10ft) in length, stiff in texture and are pale-green below. The young fronds appear in flushes and are covered in fine hairs. 

Flower: The round sori are marginal and are protected by 2-valve cups on outer side of the reflex margin. The fertile fronds appear during midsummer.

Fruit: The spores are produced on the underside of the fronds in the sporangium during the sporophyte stage of the fern life cycle. This fern is commonly transplanted and normally sold, according to length of the trunk.