

Giant Maidenhair
Also known as
giant maidenhair and black stem maidenhair
Taxonomy
Adiantum formosum
Adiantum
Pteridaceae
Polypodiales

How to care for Giant Maidenhair

How often to water your Giant Maidenhair

every 9
Giant Maidenhair needs 0.5 cups of water every 9 when it doesnāt 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

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.

Select a city to check sunlight intensity

Finding light for Giant Maidenhair in your home

a window
Giant Maidenhair may have difficulty thriving, and will drop leaves š, without ample sunlight.
Place it less than 3 feet from a south-facing window to maximize the potential for growth.
Select your region to see how the current weather in your area affects the placement of Giant Maidenhair in your home š”.

How to fertilize Giant Maidenhair

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 itās likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Giant Maidenhair after it doubles in size or once a yearāwhichever comes first.

Giant Maidenhair prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Sunlight Needs
Giant Maidenhair may have difficulty thriving and will drop leaves š without ample sunlight. Place it less than 3 feet from a window to maximize the potential for growth. Select your region to see how the current weather in your area affects the placement in your home š”.
Toxicity
Greg does not have confirmed data on this plantās toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, itās always best to consult a medical professional.
If you or someone else ingested this plant, call Poison Control atĀ US (800) 222-1222.Ā If a pet consumed this plant, contact your veterinarian or the ASPCA atĀ US (888) 426-4435.
Humidity
Giant Maidenhair enjoys lots of humidity. Provide humidity for your plant by watering regularly and thoroughly, since plants absorb most water through their root system rather than their leaves. They may also benefit from being placed next to a humidifier.
Soil
Giant Maidenhair is very sensitive to dry soil, so choose a potting soil that retains moisture. A good soil will still drain well and contain lots of organic matter such as coco coir or sphagnum moss.
Fertilizer
Giant Maidenhair grows very slowly and doesnāt require added fertilizer. Replacing your plantās potting soil once a year should provide them with more than enough nutrition. Remember, plants get their energy from sunlight, not fertilizer!
Native Region
Giant Maidenhair is native to Worldwide.
Care Summary for Giant Maidenhair
Giant Maidenhair
Greg recommends:

0.5 cups every 9 days

< 3ft from a window

Repot after 2x growth
Based on the 4ā pot your plant is in, and that it doesnāt get direct sunlight.
