All About Crocodile Fern Care

All About Crocodile Fern Care

Microsorium musifolium ‘Crocydyllus’

Crocodile ferns are gorgeous ferns originating from Southeast Asia and Australia. These unusual houseplants get their name from the texture of their leaves which resembles crocodile skin. As ferns go, these are comparatively easy to care for and do well in many home environments

Not only are these ferns a statement plant, they are also non-toxic and Pet Safe. Your dog or cat may have a little tummy upset if they ingest ferns but it is due to a digestive system lacking the ability to digest plants, not poison. AKA your kitty is not a cow with four stomachs made for breaking down plant material. So… the plant might come back up if you know what I mean.

All About Crocodile Fern Care

How To Care for Crocodile Ferns

Crocydyllus is a little more tolerant than other fern species and thus easier to care for in a home environment. The two biggest factors are moist soil and high humidity.

Avoid letting the soil dry out. You might get a pass on a few missed waterings but your plant will start suffering if it gets too dry. You also don’t want soggy, soaking-wet soil.

These do best in a kitchen or bathroom where the humidity is naturally higher. Often when the leaves start to brown, people will think the plant needs more water but it is actually low humidity causing the browning. Check out our humidity guide for ways to increase humidity.

You can pot them up an inch or two once the roots start growing out of the bottom of the pot. Remember that these plants are slow growing and won’t need potting up very often. Because they won’t need fresh soil as often as fast-growing plants, be sure to fertilize during the growing season so they don’t lack nutrients.

Read on to learn more about caring for Crocodile Ferns ……

USDA Zone 10-11

They don’t like to dry out so water when the top of the soil is dry. Crocodile ferns prefer to stay moist at all times but never soggy wet.

These are slow growing but eventually, get to 2-5 feet wide!

They prefer bright, filtered light. Think of plants growing on the forest floor or sitting under an oak tree. They get really bright light but no direct rays. Direct light can cause sunburn.

Use a rich potting mix that drains well. Add perlite and coconut coir to improve moisture retention and drainage.

They are native to subtropical regions and like 50% or higher humidity levels.

Crocodile Fern is non-toxic and safe for children and pets. Find more pet-safe plants here.

Fertilize every three months during the growing season with Green Grub Insect Frass. You can either make a compost tea to water with every time or sprinkle a layer of fertilizer on top of the soil. If using synthetic, use an all-purpose houseplant fertilizer with a balanced ratio.

Propagate by offsets. Read on for propagation instructions.

How to propagate crocodile ferns

How to propagate Crocodile Ferns

Ferns naturally propagate by spores and offsets. It’s impractical to try spore propagations in a home environment so we will focus on the division of offsets.

1. Once your plant is large enough and producing offsets you can divide it. This is easily done while repotting your plant. When you have the rootball out of the pot, use a sharp knife to cut individual offsets away from the main plant. Make sure to get enough roots to support the new offset.

2. Likewise you can also loosen the rootball with your fingers and gently separate the offset from the main plant.

3. Plant your new offset into a rooting medium, keep moist and wait for the plant to establish.

4. Once your offset is established and growing well. Repot into a pot that is 1 inch larger than the rootball and enjoy your new plant!

Get your very own Crocodile Fern here.

Microsorum musifolium


We are here to spread our love of houseplants! There are many different varieties of plants that we keep in our homes. All of them with different needs and preferences. This blog is to share our knowledge about all kinds of houseplants and help people care for their own plants.

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