Crocodile Fern, Microsorum musifolium ‘Crocodyllus’

The Crocodile Fern, Microsorum musifolium ‘Crocodyllus’, botanically known as Microsorum musifolium ‘Crocodyllus’, is a unique and eye-catching fern prized for its thick, glossy leaves marked with a raised, patterned texture resembling crocodile skin. Native to Southeast Asia and the Pacific islands, this fern brings a bold tropical feel to indoor plant collections and shaded outdoor spaces. Though exotic in appearance, Crocodile Fern is relatively easy to care for when its basic tropical needs are met. Below is a detailed  care guide to help your plant thrive.

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Crocodile Fern (Microsorum musifolium ‘Crocodyllus’) – Complete Care Guide :

Light Requirements

Crocodile Fern prefers bright, indirect light. In nature, it grows beneath forest canopies where sunlight is filtered. Indoors, place it near an east- or north-facing window, or a few steps away from a brighter window with sheer curtains. Direct sunlight can scorch the textured leaves, causing brown or pale patches.

Too little light can slow growth and reduce the bold leaf texture. Consistent bright, indirect light encourages healthy, lush foliage.

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Watering

This fern enjoys consistently moist soil, but it should never be waterlogged. Water when the top 2–3 cm of the soil begins to feel slightly dry. During warmer months, watering may be required more frequently, while in cooler seasons the frequency should be reduced.

Always use room-temperature water. Make sure excess water drains freely from the pot, as standing water can lead to root or rhizome rot. Crocodile Ferns are sensitive to both overwatering and complete drying, so maintaining balance is key.

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Soil and Potting

Crocodile Fern grows best in a rich, well-draining yet moisture-retentive potting mix. A mix suitable for ferns or orchids works well. You can also create your own by combining coco peat or peat moss, perlite, orchid bark, and a small amount of compost.

Choose a pot with drainage holes. The plant grows from creeping rhizomes that prefer to sit close to the soil surface, so avoid burying them too deeply. Repot every 1–2 years or when the plant becomes crowded, ideally during the warm growing season.

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Temperature and Humidity

Being a tropical fern, Microsorum musifolium ‘Crocodyllus’ thrives in temperatures between 18–30°C. It does not tolerate cold well and should be protected from temperatures below 15°C. Keep the plant away from cold drafts, air conditioners, and heaters.

High humidity is essential for this fern. Aim for 60–80% humidity. In dry indoor conditions, use a humidifier, place the pot on a pebble tray with water, or group it with other plants. Regular light misting around the plant can help, but avoid soaking the leaves.

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Fertilizing

Crocodile Fern has moderate feeding needs. During the active growing season (spring and summer), feed with a balanced, water-soluble fertilizer diluted to half strength every 3–4 weeks. Reduce or stop fertilizing in winter when growth slows.

Over-fertilization can damage the roots and cause leaf tip burn, so gentle and infrequent feeding is best.

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Pruning and Maintenance

Maintenance is minimal. Remove yellowing, damaged, or old fronds by cutting them close to the base using clean scissors. This helps maintain a tidy appearance and encourages new growth.

Wipe the leaves gently with a damp cloth occasionally to remove dust and allow the plant to breathe better. Avoid leaf shine products, as they can harm fern foliage.

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Common Problems

• Brown leaf edges: Usually due to low humidity or inconsistent watering.

• Yellowing fronds: Often a sign of overwatering or poor drainage.

• Slow growth: May indicate insufficient light or lack of nutrients.

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Indoor and Landscape Use

Crocodile Fern is ideal for indoor tropical displays, shaded balconies, bathrooms with natural light, and terrariums. Its bold, textured foliage makes it a striking accent plant, especially when paired with other ferns and shade-loving plants.

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Conclusion

Crocodile Fern (Microsorum musifolium ‘Crocodyllus’) is a distinctive tropical plant that adds texture and elegance to any space. By providing bright indirect light, consistent moisture, high humidity, and gentle feeding, you can enjoy healthy, dramatic foliage year-round. With the right care, this fern becomes a long-lasting and rewarding addition to your plant collection.