0How it thrives
Watermedium
Lightshade
Humidityhigh
Min. temperature-20 °CJanuary
When the top 2–3 cm of soil are dry – less often in winter, with room-temperature water.
No feeding now.
It can stay outside. Wrap the pot (hessian, polystyrene) and keep it against the house wall, out of the rain.
February
When the top 2–3 cm of soil are dry – less often in winter, with room-temperature water.
No feeding now.
It can stay outside. Wrap the pot (hessian, polystyrene) and keep it against the house wall, out of the rain.
March
When the top 2–3 cm of soil are dry.
First weak dose at the end of the month if it is actively growing.
Bright indirect light, north or east window.
April
When the top 2–3 cm of soil are dry.
Liquid feed every 2–3 weeks.
Bright indirect light, north or east window.
May
When the top 2–3 cm of soil are dry.
Liquid feed every 2–3 weeks.
Bright indirect light, north or east window.
June
When the top 2–3 cm of soil are dry – more often in heatwaves, preferably in the evening.
Liquid feed every 2–3 weeks.
Bright spot without direct sun, north or east window.
July
When the top 2–3 cm of soil are dry – more often in heatwaves, preferably in the evening.
Liquid feed every 2–3 weeks.
Bright spot without direct sun, north or east window.
August
When the top 2–3 cm of soil are dry – more often in heatwaves, preferably in the evening.
Liquid feed every 2–3 weeks.
Bright spot without direct sun, north or east window.
September
When the top 2–3 cm of soil are dry.
Liquid feed every 2–3 weeks.
Bright indirect light, north or east window.
October
When the top 2–3 cm of soil are dry.
No feeding now.
Bright indirect light, north or east window.
November · now
When the top 2–3 cm of soil are dry.
No feeding now.
Bright indirect light, north or east window.
December
When the top 2–3 cm of soil are dry – less often in winter, with room-temperature water.
No feeding now.
It can stay outside. Wrap the pot (hessian, polystyrene) and keep it against the house wall, out of the rain.
Never pour water into the centre of a bird’s nest fern – the crown rots easily.
Hart's-tongue fern – what to know
Hart's-tongue fern (Asplenium scolopendrium) belongs to the Aspleniaceae family (genus Asplenium) and is listed in our catalog under “Other”. Its needs – light: shade; water: medium; humidity: high. Frost-hardy to about -20 °C – it can overwinter outdoors in many climates. Easy enough for beginners. It is not known to be toxic to cats or dogs. Nobody on Perfect Plants Club has added it to their collection yet – be the first!
All Asplenium species in the catalog →Detailed toxicity data →
Frequently asked questions
How often should I water Hart's-tongue fern?
Moderately: water when the top 2–3 cm of soil is dry, and never let it sit in standing water.
How much light does Hart's-tongue fern need?
It copes well with partial shade and darker spots; keep it out of harsh direct sun.
How cold can Hart's-tongue fern get?
Frost-hardy to about -20 °C – it can overwinter outdoors in many climates.
Is Hart's-tongue fern toxic to cats and dogs?
It is not known to be toxic to cats or dogs.
What members’ data shows
When does it really bloom?
No blooms logged yet. If yours flowers, your data will be the first!
Average watering interval
Not enough watering logs yet. Waterings logged in the care hub feed this chart.
Tips and questions about this species
Asplenium
Care data is for guidance only.
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