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Black Tree Fern
Also known as
Cyathea medullaris, Mamaku, Katātā, Kōrau and Pītau
Taxonomy
Sphaeropteris medullaris
Sphaeropteris
Cyatheaceae
Cyatheales
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How to care for Black Tree Fern
How often to water your Black Tree Fern
![Water needs for Black Tree Fern](https://media.greg.app/static/plantx-website-assets/care-pages/water-graphic.png?format=pjpeg&optimize=medium&auto=webp&width=600)
every 9
Black Tree Fern needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Water 0.5 cups every
9
Finding light for Black Tree Fern in your home
![Light needs and placement for plant Black Tree Fern: 1ft from a window](https://media.greg.app/static/plantx-website-assets/care-pages/light-graphic.jpg?format=pjpeg&optimize=medium&auto=webp&width=600)
a window
Black Tree Fern love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Black Tree Fern does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Black Tree Fern in your home 🏡.
How to fertilize Black Tree Fern
![Nutrient, fertilizer, and repotting needs for Black Tree Fern: repot after 2X growth](https://media.greg.app/static/plantx-website-assets/care-pages/nutrient-graphic.jpg?format=pjpeg&optimize=medium&auto=webp&width=600)
Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Black Tree Fern after it doubles in size or once a year—whichever comes first.
Care Summary for Black Tree Fern
Black Tree Fern
Greg recommends:
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0.5 cups every 9 days
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< 1ft from a window
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Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.
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