Ferns

The most widely available maidenhair fern, with small, fan-shaped leaflets on wiry black stems that are among the most elegant structures in the plant kingdom. The problem is the humidity requirement: the leaflets are so thin they have almost no water storage and desiccate within hours in dry centrally heated air. In a humid bathroom with good indirect light, or in a terrarium, it is one of the most beautiful ferns in cultivation. In a dry living room it is a reliable disappointment regardless of other care factors.

A compact cultivar of raddianum that is somewhat more tolerant of imperfect humidity than the standard species, one of the better cultivars for indoor growing in average home conditions. The leaflets are smaller and the plant denser than standard raddianum. Still requires significantly higher humidity than most houseplants; the improved tolerance is relative rather than absolute.

Larger leaflets than raddianum, giving a bolder, less finely textured appearance while keeping the characteristic black-stemmed elegance. Slightly more robust and more tolerant of lower humidity than standard raddianum, making it the better choice for indoor growing in most homes where 70%+ humidity cannot be maintained. Still requires meaningfully higher humidity than most houseplants.

The most delicate of the commonly available Adiantum, with very fine, almost translucent leaflets that are more humidity-sensitive than raddianum. Extraordinarily beautiful when well-grown in terrarium or conservatory conditions. Not suited to standard indoor growing without dedicated humidity management. Recommended only for growers who have already succeeded with raddianum and want to push further.

Smooth, strap-shaped, bright green fronds with a dark midrib forming a clean, architectural rosette. One of the most forgiving ferns in standard indoor environments. The undivided fronds are far more robust than the leaflet-based structure of Adiantum or Nephrolepis and tolerate lower humidity significantly better. The entire plant looks like it has been carefully designed. One of the best choices for shaded bathrooms, hallways, and any position where humidity is naturally higher without supplemental effort.

The most widely sold Asplenium cultivar, with strongly ruffled, wavy frond margins that give it a more textured appearance than plain nidus while keeping the clean strap-shaped frond form. Slightly more humidity-sensitive than standard nidus but still one of the most manageable ferns for standard indoor conditions. Excellent for modern interiors where its sculptural, wave-edged fronds read as deliberately designed rather than simply plant-like.

Similar to nidus but with narrower fronds and a more upright, vase-shaped posture. Often confused with nidus at retail. The narrower frond width and more erect stance are the distinguishing features. Care is identical to nidus in every respect. One of the more elegant Bird's Nest forms for growers who find the broad nidus fronds too bold for their space.

Divided, feathery fronds quite unlike the strap-shaped nidus. This Asplenium looks more like a conventional divided fern. The key feature is the tiny plantlets (bulbils) that form on the frond surface and can be detached and potted to produce new plants, making it one of the most propagation-friendly ferns available. Requires higher humidity than nidus and is more demanding overall. A rewarding choice for growers who want to propagate.

Finely divided, feathery fronds with the characteristic thick, furry, silver-grey rhizomes that give it the rabbit's foot common name. The most widely available Davallia. Grown in a hanging basket the rhizomes creep over the sides and eventually form a cascading display of both fronds and furry feet. The rhizomes are the critical distinctive feature. They must remain exposed on the surface and must not be buried or kept permanently saturated or they will rot.

Similar to fejeensis but notably more cold-tolerant. It can handle temperatures close to freezing when established, making it suitable for cool conservatories and unheated porches in mild climates. The rhizomes differ slightly in texture. Less commonly available than fejeensis at retail but worth seeking out for cooler growing environments. Care otherwise identical to fejeensis.

Broad, strap-shaped fronds with a deeply textured, patterned surface that is unlike any other fern in common cultivation. The reticulated network of raised ribs across each frond surface closely resembles crocodile skin. More tolerant of lower humidity than Adiantum or Nephrolepis, making it a more practical choice for standard indoor environments where humidity cannot be reliably maintained above 60%. The thick, undivided fronds are robust enough to handle typical indoor conditions without the chronic tip browning that plagues other ferns in dry air.

More divided fronds than Crocodyllus with a smoother surface and less pronounced texture. Less commonly available at retail than the Crocodyllus cultivar. Care is identical in all respects. A good alternative where the crocodile texture of Crocodyllus is not available or not desired.

Long, arching, ladder-like fronds that spill dramatically from hanging baskets. The classic fern silhouette. Requires 60%+ humidity to maintain its appearance. Without it the frond tips brown progressively from the outer fronds inward until the plant looks sparse and ragged. A humid bathroom with a natural light source is often the best position in a standard home. Does not recover well from repeated complete desiccation; each severe dry spell causes frond drop that takes months to replace.

The cultivar that gave the common name Boston Fern, slightly more robust than the standard species with a more pendulous, arching frond posture. The most widely sold form globally. Marginally more tolerant of handling and imperfect conditions than the species but shares all the same humidity requirements. Care identical to standard exaltata.

Compact, densely ruffled fronds. The pinnae divide into fine segments giving a fluffy, almost feathery texture. Somewhat more tolerant of lower humidity than the large arching standard forms. The compact, denser structure retains moisture slightly better. Good for windowsill and tabletop growing where the arching fronds of standard exaltata would be too large.

Yellow and green variegated fronds, the most colorful Nephrolepis cultivar and unusual in a genus where most forms are plain green. The yellow variegation requires more light than green forms to maintain, medium to bright indirect. In too low light the yellow fades to pale green. Shares all the same humidity requirements as standard exaltata. The combination of color and fern texture is genuinely distinctive.

A separate species with narrower, more upright fronds and small tubers on the stolons. More compact than exaltata and somewhat more drought-tolerant due to the tuberous stolons storing water. The more upright habit makes it better suited to pots and smaller spaces than the arching exaltata. Slightly less humidity-demanding than standard exaltata in practice, though it still benefits significantly from 50%+. Sometimes considered invasive outdoors in warm climates.

The most widely available and most forgiving Platycerium for indoor growing. The fertile fronds fork once or twice into the antler-like form that gives the genus its common name. Produces pups (offsets) at the base of established mounts readily. These can be removed and re-mounted once they have developed their own shield fronds. More cold-tolerant than most tropical ferns and more forgiving of imperfect humidity when mounted and watered by submersion. An impressive wall-mounted specimen plant that improves significantly with age as the shield fronds build up and the fertile fronds expand.

Larger than bifurcatum with more dramatically forking fertile fronds. Does not produce pups. It grows as a single rosette plant and produces spores from a single fertile frond at the base rather than from the frond tips. Slower growing than bifurcatum and more impressive at maturity. One of the most spectacular mounted ferns available when given adequate time and space to develop. Care identical to bifurcatum.

Distinctive silver-grey fertile fronds densely covered in white hairs that give the species its common name. More upright frond posture than bifurcatum. The fronds reach upward rather than arching outward. More drought-tolerant than most Platycerium due to the dense hairy covering reducing moisture loss. Requires maximum indoor light, one of the more light-demanding Platycerium. Rare enough to be a notable find when available.

Very large species. The fertile fronds can exceed 1m in a mature mounted specimen. Requires patience. Developing to full maturity takes years. Care identical to bifurcatum but the large scale requires more substantial mounts and longer submersion periods.

One of the largest Platycerium species. Fertile fronds can reach considerable size in a mature mounted specimen. Requires warm, humid conservatory conditions and is rare in cultivation relative to demand. One of the most sought-after Platycerium among serious collectors. Not suited to standard indoor growing without dedicated warm, humid conditions. For experienced growers with appropriate environments.

Upright, undivided to lightly divided fronds in mid-green with a clean, elegant habit. One of the most manageable ferns for standard indoor growing without supplemental humidity. The thicker fronds tolerate lower humidity significantly better than Adiantum or Nephrolepis. A practical choice for growers who want fern aesthetics without the humidity management that most ferns require. More compact root system than most ferns; tolerates being slightly rootbound.

A white central stripe runs the length of each frond segment, stable, attractive, and unusual among variegated ferns. The white variegation is most crisp and defined in medium indirect light; in lower light it becomes less distinct. Care is identical to standard cretica. One of the more striking variegated table ferns and one of the more manageable for growers without high humidity environments.

Narrow, silver-white striped fronds with a more delicate, lacy appearance than the broader cretica. The silver-white central striping is striking and prominent. Requires slightly more light than cretica to maintain the silver coloration. Medium indirect is the minimum for the variegation to remain distinct. Slightly more demanding than cretica overall but still one of the more manageable variegated ferns available.

One of the most visually remarkable small plants in cultivation. The iridescent blue-green foliage produces a metallic structural color that shifts with viewing angle, similar to the iridescence in certain butterfly wings. The color is caused by light interference in the leaf structure rather than pigment. Requires very high humidity, 70%+, that makes terrarium growing essentially necessary for maintaining appearance in temperate homes. Outside a terrarium in dry air the iridescence fades and the plant collapses quickly. In the right environment it is extraordinary.

Upright, branching habit rather than creeping, more architectural than uncinata, reaching up rather than spreading across the substrate. More tolerant of slightly lower humidity than uncinata, somewhat more manageable for growing outside a terrarium, though still requires significantly higher humidity than most houseplants. The upright growth form makes it more suitable for small pots and dish gardens than the spreading kraussiana.

Flat, creeping, densely branching form in vivid bright green, the most vigorous and spreading Selaginella. Shares the same demanding humidity requirements as other Selaginella. Outside a terrarium in standard indoor air it deteriorates quickly.