Plant Care Adiantum Tenerum

Adiantum Tenerum

Also known as

Brittle Maidenhair Fern, Brittle Maidenhair Fern and Rosy Maiden Hair Fern


Adiantum tenerum

How to care for Adiantum Tenerum


How often to water your Adiantum Tenerum

Water needs for Adiantum Tenerum
0.5 cups
every 9

Adiantum Tenerum needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot located in Seattle, Washington.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Adiantum Tenerum

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Plant care guide for Adiantum Tenerum in Seattle, Washington

Seattle, Washington

35% Very Low

Growing Adiantum Tenerum in Seattle right now

Light needs for plant Adiantum Tenerum in Seattle, Washington

Plant growth potential is currently very low 📉

November 29th, 2021

Sunlight intensity as measured by “net radiation” in Seattle is currently very low 📉.

The availability of high quality sunlight in your home impacts ability for plants to thrive and is key in dete…

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Light needs for plant Adiantum Tenerum in Seattle, Washington

Sunlight intensity will decrease by 39.5% ☀️

November 30th, 2021

Seattle is trending towards lower sunlight intensity!

The amount of sunlight in Seattle is expected to decrease by 39.5% over the next 2 weeks to an average of 4.7 megajoules of energy per m2 per …

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Light needs for plant Adiantum Tenerum in Seattle, Washington

Daylight will decrease by 1.5 hours 📉

November 30th, 2021

This month, Seattle is getting an average of 8.4 hours of clear sky sunlight per day.

Hours of daylight will decrease by 15.4% over the next two weeks. Your plants will get 8.2 total hours of dayl…

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Finding light for Brittle Maidenhair Fern in your home

Light needs and placement for plant Adiantum Tenerum: 3ft from a window
3ft or less from
a window

Adiantum Tenerum may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.

Place it less than 3 feet from a south-facing window to keep it happy during this time of reduced sunlight intensity in Seattle, Washington ⛅.


How to fertilize Adiantum Tenerum

Nutrient, fertilizer, and repotting needs for Adiantum Tenerum: repot after 2X growth

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 Adiantum Tenerum after it doubles in size or once a year—whichever comes first.

When to repot Adiantum Tenerum

Nutrient needs for plant Adiantum Tenerum in Seattle, Washington

Is this a good time of year to repot? No ⏳

November 30th, 2021

The growing potential in Seattle is very low 📉.

Repotting in late fall or winter when the day lengths are shorter can be very stressful for a plant and cause it to go into shock.

It's best to …

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Water Needs
Sunlight Needs
Growth Pattern

Care Summary for Adiantum Tenerum

Adiantum Tenerum

Adiantum Tenerum

Greg recommends:


0.5 cups every 9 days


< 3ft from a window


Repot after 2x growth

Based on your location in Seattle, Washington, the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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