What is Asplenium viviparum?

Asplenium viviparum (syn. Asplenium daucifolium) is an epiphytic fern belonging to the family Aspleniaceae, native to the humid, shaded forests of Mauritius and Madagascar. It belongs to the large genus Asplenium, which includes around 700 fern species distributed across all continents — several of which are cultivated as houseplants, such as the bird's nest fern (A. nidus) and the Australian hen-and-chickens fern (A. bulbiferum).

Its name viviparum comes directly from the Latin vivus (alive) and parere (to give birth) — it refers precisely to this plant's extraordinary ability to produce new living plantlets directly on the surface of its fronds, without going through spore reproduction. This unique botanical behaviour makes it an absolutely irreplaceable collection curiosity.

What are the unique characteristics of Asplenium viviparum?

• Very finely divided fronds with delicate pinnules: this is the visual signature of A. viviparum. Unlike the broad, entire fronds of the bird's nest fern, its fronds are divided, redivided and further subdivided into very fine, cut and toothed pinnules — of a luminous bright green — giving the plant an airy and almost fairy-like texture, comparable to giant carrot or chervil foliage. This feathery effect is particularly striking and rare among indoor ferns.
• Production of viviparous plantlets on fronds — a unique botanical phenomenon: this is the absolutely exceptional characteristic of this species. During the growing season, tiny, perfectly formed miniature plantlets appear directly on the surface of the fronds — at the tips of the pinnules and on the blade. These plantlets are genetically identical copies of the parent plant. When sufficiently developed, they fall naturally to the ground, root and produce new plants. This is a living nursery suspended in the air, functioning permanently without any human intervention.
• Upright to slightly trailing habit: the plant forms a compact, erect clump at first, with its longest fronds gradually becoming slightly arching and trailing — an elegant effect well suited to cultivation on a high shelf or in a hanging pot.
• Modest and compact size: A. viviparum remains relatively compact — up to 30–40 cm in indoor cultivation — making it easy to integrate into all interior spaces, even the most modest.
• Non-toxic plant: like most ferns of the genus Asplenium, it is safe for humans, cats and dogs — a valuable advantage in homes with children or pets.
• Slow but regular growth: growth is slow, ensuring a plant that remains in its container for a long time without requiring frequent repotting.

Asplenium viviparum: a living botanical curiosity

Viviparity — the production of living plantlets directly on the vegetative organs of the parent plant — is a rare and fascinating botanical phenomenon. It is found in a few other plants well-known to collectors: certain Kalanchoe (K. daigremontiana, K. tubiflora), cuckoo flower (Cardamine pratensis), and some grasses. But unlike Kalanchoe which require intense full sun, A. viviparum is one of the only viviparous plants to thrive perfectly in partial shade — making it unique among indoor collections. It is also an extraordinary educational plant for children and curious minds — watching the plantlets form, grow and naturally fall to take root is a living, permanent spectacle.

How to grow Asplenium viviparum?

• Light: partial shade is essential. A. viviparum thrives in moderate to good indirect light — behind a window facing east, west or north, without direct sun that would burn its delicate fronds. It even tolerates fairly dark spots, though growth will be slower. Never in full direct sun.
• Substrate: specialist fern compost, humus-rich, aerated and free-draining. An ideal mix combines sphagnum peat (40%), coir fibre (30%), perlite (20%) and worm castings (10%). A quality indoor compost enriched with semi-decomposed leaf mould and a little sand or perlite also works well. Find quality composts in our accessories range.
• Watering: regular to abundant during the growing season — keep the rootball constantly lightly moist without ever letting it dry out. Never allow water to stand in the saucer. In autumn-winter, reduce watering and allow the surface to dry slightly between waterings — A. viviparum benefits from a light winter rest period.
• Atmospheric humidity: this is the most important factor. A. viviparum is native to the humid tropical forests of Mauritius — it needs a high ambient humidity of 60 to 80%. Mist the fronds regularly with soft, non-calcareous water. Place the pot on a tray of wet clay pebbles, or grow it in a bright bathroom or kitchen. Avoid cold draughts and proximity to radiators which dry the air.
• Temperature: 18 to 25°C year-round. Never below 10–12°C. Avoid sudden temperature changes.
• Feeding: light, once per growing season (spring and summer), with a balanced liquid indoor plant fertiliser diluted by half. Stop all feeding in autumn and winter. Find our suitable fertilisers in our shop.

What are the care requirements?

• Removing damaged fronds: cut out yellowed, dry or damaged fronds with clean scissors. This prevents disease and encourages new fronds to emerge.
• Cleaning the fronds: the very fine pinnules accumulate dust easily. Mist regularly or clean gently with a soft brush to maintain the fresh, luminous appearance of the foliage. Never use chemical products on the fronds.
• Infrequent repotting: A. viviparum dislikes frequent disturbance. Repot only when roots emerge from the pot, in spring, into fresh, slightly larger substrate. Never repot in winter.
• Winter rest period: reduce watering and stop all feeding from late autumn to early spring — the plant benefits from a slight natural rest period.
• Watch for slugs and snails: if placed outdoors in summer, watch for slugs and snails which are attracted to the tender fronds.

Where to place Asplenium viviparum?

• In a bright bathroom: the ideal position. The natural humidity of the bathroom exactly reproduces its native tropical environment — it will be in perfect conditions if it benefits from a luminous window.
• In a hanging pot or on a high shelf: its progressively trailing habit is particularly well displayed when the fronds can cascade freely downward from an elevated position.
• In a shaded corner or low-light room: more shade-tolerant than most houseplants, it is a precious choice for bringing life to dark corners of apartments.
• In an open terrarium: in a large open terrarium with good constant humidity, it will develop in conditions close to its natural habitat and produce its viviparous plantlets abundantly.
• In a conservatory or frost-free greenhouse: sheltered from frost and in a humid, bright atmosphere, it can be grown in a conservatory or unheated greenhouse in mild-winter regions.

What are the advantages for collectors?

• A permanent living botanical phenomenon: watching the viviparous plantlets form, grow and naturally fall to take root is a plant spectacle that very few plants can offer.
• The only viviparous plant for partial shade: among all viviparous plants cultivated in Europe, A. viviparum is the only one to thrive in partial shade — making it irreplaceable for indoor collectors.
• An incomparable airy leaf texture: the fineness and lightness of its very divided pinnules create a feathery, fairy-like effect without equivalent among common indoor ferns.
• A plant that multiplies itself: the plantlets fall and root spontaneously — one plant naturally gives rise to many daughters without any intervention. A unique investment.
• Non-toxic: safe for humans, cats and dogs — a precious advantage in homes with children or animals.

How to propagate Asplenium viviparum?

Propagation is particularly simple thanks to the plant's natural viviparity:

• By collecting viviparous plantlets: allow the plantlets that form on the fronds to develop until they have 2–3 leaves. Gently detach them from the frond (or allow them to fall naturally) and place them on the surface of a moist fern substrate, lightly buried. Keep under a cloche or in a humid space until rooting — generally in 3 to 6 weeks.
• By clump division: in spring, gently divide well-established clumps, ensuring good roots on each section. Replant immediately in fresh substrate.
• By spores: propagation by spores is possible but slow (several months) and requires very controlled humidity and light conditions.