Few plants settle into a British home as gracefully as a fern. They are the quiet backbone of our damp hedgerows and shaded woodland, and the same qualities that make them thrive outdoors — soft filtered light, steady moisture, cool air — can be recreated indoors with surprisingly little fuss. The trick is not to treat every fern the same. A maidenhair and a holly fern may look like distant cousins, but they want quite different conditions. Match the plant to the room and you will be rewarded with arching fronds for years.

Start by reading the light in the room

Before you choose anything, spend a day watching the light. Stand in the corner where the plant will live and check how a shadow falls — a soft, blurred shadow means bright but indirect light, which suits most ferns. A sharp, hard-edged shadow suggests direct sun, which will scorch and yellow the fronds by midsummer. No shadow at all, and you can barely read a newspaper there, means deep shade.

Ferns generally want the light levels of a woodland floor: dappled, gentle, and away from the glare of south and west-facing glass. A north-facing windowsill, a shelf two metres back from a sunny window, or a spot beside a frosted bathroom pane are all ideal. Avoid the strip directly above a radiator, where hot, dry air rises and frazzles delicate foliage.

Ferns for shaded corners and north-facing rooms

For hallways, downstairs loos, and rooms that never quite catch the sun, choose ferns with thick, leathery or glossy fronds. These hold their moisture and cope with lower light far better than lacy varieties.

• Hart's tongue fern — long, glossy, strap-shaped fronds that look sculptural in a simple pot. A British native, happy in cool shade and one of the most tolerant of low light.
• Holly fern — dark, leathery, holly-like leaflets that shrug off dry air and the odd missed watering.
• Button fern — a compact little plant with rounded leaflets, perfect for a bedside table or a north-facing kitchen shelf where space is tight.
• Blue star fern — blue-green, wavy fronds and a relaxed, trailing habit that looks lovely on a bookshelf.

Ferns that love a bright, steamy bathroom

Bathrooms are the easiest room in the house for ferns, because the humidity does half the work for you. A frosted window giving soft daylight is close to perfect. Tropical ferns with fine, intricate fronds — the ones that sulk in a dry sitting room — will flourish in this steamy microclimate.

• Maidenhair fern — delicate black stems and fan-shaped leaflets. Demanding about moisture, but a bathroom keeps it happy. Keep it out of direct sun and never let it dry out completely.
• Bird's nest fern — broad, spoon-shaped fronds emerging from a central rosette. Water the compost around the edge, never into the crown, or it will rot.
• Boston fern — a classic Victorian favourite with long, arching fronds. Superb in a hanging pot near a bathroom window.
• Staghorn fern — mounted on a board and fixed to the wall, it makes a striking living picture in a warm, humid room.

One caution: most tropical ferns dislike temperatures below about 10°C, so a chilly, unheated bathroom in January is not the refuge it appears to be.

Ferns for busy family homes

Where there are children, pets, footballs and doors slamming, you need a fern that forgives. The good news is that most true ferns are non-toxic to cats and dogs, which makes them a sensible choice for a household with animals — though always check any plant before bringing it home, and note that the so-called asparagus fern is not a true fern and is best kept out of reach.

• Boston fern — tolerant of average humidity and quick to bounce back after a knock, though it does drop the occasional leaflet.
• Kangaroo paw fern — thick, creeping rhizomes and robust fronds that handle life on a busy shelf.
• Rabbit's foot fern — furry rhizomes that creep over the pot edge and fascinate children; forgiving of occasional neglect.

Place robust ferns in hanging baskets or on high shelves, and group several pots together — the plants create their own little pocket of humidity.

Watering, humidity and getting through winter

Overwatering kills more ferns than drought ever will. Aim for compost that is consistently moist but never sodden: water when the surface feels just dry to the touch, then let the excess drain away completely. Never leave a pot standing in water.

Use tepid water rather than cold, and if your tap water is hard, leave it to stand overnight or use rainwater — hard water leaves brown tips on maidenhair and other fine-leaved types. Feed lightly, about once a month at half strength from spring to early autumn, and not at all in winter.

Centrally heated homes are desperately dry between October and March. Stand pots on a tray of pebbles with a little water, mist in the mornings, or move plants to the bathroom for the winter months. Trim brown fronds at the base with clean scissors and keep plants well away from radiators and cold draughts alike.

Styling ferns the cottage way

Ferns look most at home in honest, unpretentious containers: terracotta, aged zinc, wicker, or an old stone sink. Group them at different heights on a painted dresser, a potting bench, or a windowsill alongside trailing ivy and a few scented geraniums for that relaxed, layered cottage feel. A single large hart's tongue in a simple pot makes a quiet statement in a hallway, while a hanging Boston fern softens a bathroom window beautifully. Repot in spring when roots start pushing through the drainage holes, and your ferns will keep unfurling fresh croziers for years to come.