Bird’s Nest Fern / Nest Fern
Asplenium nidus
description
Bird’s Nest Fern is an epiphytic fern forming a rosette of broad glossy undivided fronds.
benefits
- Low—light tolerant
- Pet-friendly, non-toxic to animals
- Suitable for containers
How to care for Bird’s Nest Fern
sunlight
In tropical forests, Bird’s Nest Fern grows on tree trunks beneath a leafy canopy. Give it filtered, even light indoors rather than a blast of sun.
Medium indirect light
A few feet back from an east or north window is a good starting point. It can manage lower light, but growth will slow and new fronds may be smaller.
Bright indirect light
Place near an east window with a sheer curtain, or set back from a bright south or west window. Keep direct sun off the fronds, as it can scorch and fade them.
watering
Keep the potting mix evenly lightly moist, never saturated. Let only the surface begin to dry before watering again.
Spring and summer
Water thoroughly about every 4-7 days in bright, warm conditions, when the top 1-2 cm of mix feels dry but it is still lightly moist below. Let excess drain away.
Autumn and winter
Water roughly every 7-14 days as growth slows, checking that the upper layer has dried slightly before watering. Lower light, cool rooms, a large pot, or a dense mix all slow drying.
Use these intervals as a starting point. Warmth, light, humidity, pot material, soil mix, and active roots change how quickly the root ball dries.
humidity
Preferred humidity
Bird's Nest Fern grows in humid tropical forest canopies, so it stays happiest with consistently moist air. Most homes are acceptable above about 40%, especially if watering is steady.
Keep it away from heating vents, air conditioners, and radiators. Dry winter heating is the time it most often benefits from extra humidity.
How to increase humidity
- Group plants together or use a humidifier nearby.
- Place the pot on a pebble tray with water, keeping the pot above the waterline.
- Choose a naturally humid room with bright, indirect light, such as a bathroom.
temperature
Preferred range
Winter minimum
Bird’s Nest Fern comes from warm, sheltered tropical forests, so it prefers steady indoor warmth. Keep it away from chilly windows, exterior doors, and air-conditioning or heating vents. Growth slows in cooler rooms, and prolonged cold can damage the fronds.
nutrition
March - August
Feed about every 4-6 weeks while new fronds are growing, using a balanced liquid houseplant fertilizer at half strength on already moist soil. Stop feeding in winter or when growth slows noticeably.
Nitrogen
Nitrogen supports the fern's broad green fronds. A gentle, balanced fertilizer provides enough without pushing soft, salt-sensitive growth.
soil
Airy, moisture-retentive soil
Its epiphytic roots need oxygen as well as steady moisture. Use a loose mix of peat-free potting soil or coco coir with fine orchid bark and perlite, so it stays lightly damp without becoming dense or soggy.
pH 5,5 - 6,5
This is mildly acidic, which suits fern roots well. Most peat-free houseplant or orchid-style mixes fall close to this range; avoid adding lime or using strongly alkaline garden soil.