Family: Dryopteridaceae
Common name: House holly fern, Japanese holly fern, Fern holly, Holly fern, Aspidium falcatum, Asian net-veined holly fern, Japanese net-veined holly fern
House Holly Fern or Holly fern is a beautifully ornamental, evergreen plant that has long, arching leaves with many glossy green leaflets. They are native to East Asian countries and can grow well in tropical weather, even indoors if there is good sunlight.
They prefer to grow on rotting logs of wood or rocky crags where their long roots can get a foothold easily.
Plant Characteristics
House Holly Ferns grow to a height of .8 to 1 meter with leaves arising from the root system like in most ferns.
Roots are fibrous and thin, long rhizomes that grow almost horizontally on the ground in a creeping fashion, another tell-tale feature of ferns. Roots also help the plant in absorbing moisture and nutrients from the soil.
The stem of the House Holly fern is hidden and almost non-existent as the leaves emerge directly from the rhizomes. These plants are known and loved for their long, large, arching fronds that grow 90-100 cm long, with 20-30 dark green glossy leaflets.
These leaflets have a netted pattern of veins giving the plant its name Net-veined holly fern.
Leaflets are glossy, leathery, and long-lasting, about 10-15 cm long with a toothed margin. House holly fern leaves have clusters of sori underneath them, which produce spores that help in the propagation of the plant, like most other ferns.
The sori are clusters of rounded or elongated structures called sporangia which is the reproductive structure of the plant.
Since House Holly Ferns belong to the family of ferns, they do not produce flowers, fruits, or seeds; instead reproduce vegetatively through spores that can germinate and produce new plants when they fall on a suitable medium or surface.
Gardening Tips
House Holly Ferns can thrive outdoors or indoors in partial or indirect sunlight. Very bright, direct sunlight can burn the edges of the leaves. They are tolerant of poor soil, but it should be porous and well-aerated. Waterlogging or over-watering can ruin the plants completely.
Water regularly during summer months, or when the soil is dry to touch. Misting can help the plant have adequate moisture during dry, hot weather. These plants are light feeders, and only need fertilization once in 5-6 months.
They do not need pruning since the fronds usually grow beautifully outwards and downwards from the central root area.
Their thick, leathery leaves are mostly resistant to pests. In all, this plant is very low maintenance, provided it has adequate sunlight and moisture.
When grown near water bodies, these plants can absorb the necessary nutrients and moisture from the atmosphere, making them very self-sufficient.
Uses of House Holly Ferns
These plants are mostly grown as ornamentals in outdoor and indoor gardens. They grow well near water bodies like artificial or natural ponds with rocky or craggy edges where these plants can grow and thrive.
They also make excellent indoor plants for offices or malls, placed near sunny windows. Parts of the plant have some medicinal uses in the treatment of worms, especially tapeworms.
They are also used in the treatment of cuts, wounds, and digestive disorders.
But the leaves have some amount of toxicity, hence no part of the plant should be consumed without expert advice. Also, make sure the plant is kept away from children and pets.
Propagation
Propagation is through spores or root division.
Since House Holly Ferns do not produce flowers, fruits, or seeds, they reproduce vegetatively through spores. The spore-producing structures called sporangia are located underneath the leaves, arranged along the edges of the leaves.
These small circular or elongated structures are arranged in clusters called sori, covered by a thin membrane called indusium.
In mature leaves, spores produced inside the sori are released once the indusium opens up. These spores fall on the ground or are carried by wind to other places, where they germinate in the soil. These small ferns can be removed from underneath the parent plant and replanted.
Mature leaves can be dried, then placed in a paper bag and shaken to release the spores. These tiny, black spores can be sown in a well-drained medium to germinate.
When a plant fills the pot it is in, it needs to be repotted. At that time, the roots can be gently separated or even cut using a sharp knife to produce multiple plants.
Photographed at: Terminal 2, Bangalore International Airport
