Boston fern
Nephrolepis exaltata
Soft fronds arching out in every direction. Loves humidity — perfect for a bathroom with a window.
- LightLow light
- Waterevery 3 days
- CareNeeds attention
- Max height60 cm
- PetsSafe
- HumidityLoves humidity
- Air purifyingYes
How to care
Keep the soil evenly moist. Mist the fronds a few times a week. No direct sun.
from₫240.000
Design this potDesign with this plant
Three glazes on the pot shape picked for this species. One tap opens the studio with that setup — change anything from there.
What it is, and who it suits
A Boston fern is a soft spray of fronds that arch outwards and then fall, giving a texture nothing else in the shop provides. In return it is the most demanding of the foliage plants: watering every three days and high humidity. It suits people who enjoy having something to do with a plant, and it suits households with cats and dogs particularly well — it sits in the safe group, unlike the snake plant or the pothos.
Where to put it, and how much room to leave
Indirect light and absolutely no direct sun — one afternoon in fierce light is enough to crisp an entire side of the plant. But humidity, not light, is what should decide where it lives. A bathroom with a window is the best spot in the house for this species, a kitchen is next, and the worst is a room with air conditioning running all day. The plant stands about sixty centimetres and spreads at least as wide, so leave a seventy-centimetre circle around the pot or the fronds get pressed against a wall and snap. A plant stand or a high shelf shows it best, because its whole shape is a falling one.
The year-round rhythm
Every three days, and this is the one foliage plant where you keep the soil evenly moist rather than letting it dry between waterings. Evenly moist, not waterlogged — the pot still needs drainage and the saucer must never stand in water. Mist the fronds a few times a week, or better, sit the pot on a tray of pebbles with shallow water beneath: it evaporates around the plant all day without the roots touching it. Stretch to four or five days in the cool or rainy season, but never let the soil go bone dry — a fern stores nothing, and one drought permanently costs you those fronds. Trim yellowed fronds off at the base year-round; that is normal housekeeping, not a symptom. Feed weak fertiliser monthly through the growing season. Repot annually.
Which pot suits it
Size M covers almost every case, L once the clump has filled out. This is one of the rare species where glazed ceramic beats terracotta: terracotta breathes through the wall and dries fast, which is the thing you are trying to avoid. A flared shape works best because it lets the fronds fall clear of the pot instead of matting against it; a tall cylinder gets hidden under the canopy, meaning you paid for a body nobody will see. Dark or neutral glazes lift the fresh green; avoid busy patterns, because the foliage is already dense texture and two dense textures side by side cancel each other out.
Three things that go wrong
Crisp brown frond edges that crumble when touched: the air is too dry, almost always air conditioning or a fan blowing straight at the plant. Move it out of the draught and add a pebble tray; the crisped parts will not green up again, so cut them off. A sudden heavy shed across the whole plant a few days after the fact: the soil went bone dry once. Soak it, cut away everything dead, and it will usually push new growth from the crown within a few weeks. Yellow mushy fronds with permanently wet, sour-smelling soil: rot — the opposite failure. Check the drainage hole and empty the saucer. Toxicity is not a worry here: the Boston fern is pet-safe, and a cat chewing a frond comes to no harm.
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