Polypodiaceae
Java fern: Best for Low Light
Leptochilus pteropus
A very easy-to-maintain aquatic plant, ideal for beginners. It requires low light and its rhizome must never be buried.
Every 7-10 days
Low light
18° - 28°C
60% - 100%
Categories
What is Java fern?
Java fern (Leptochilus pteropus) is a easy-care plant from the Polypodiaceae family. Leptochilus pteropus, better known as Java fern, is an epiphytic aquatic plant native to Southeast Asia. It features creeping rhizomes and leathery green leaves. It is one of the most popular plants in the aquarium hobby due to its extreme hardiness and its ability to grow attached to rocks or drift...
Java fern grows up to 35cm, spread of 25cm, 18°C – 28°C, 60–100% humidity. It is suitable for indoor environments and safe for pets.
Unlike many tropical plants, Java fern tolerates watering mistakes. Best for beginners. Unlike many popular species, Java fern is safe to keep around pets.
How to Care for Java fern?
TLDR: Java fern needs Low light, watering every 7 days, and temperatures between 18-28°C with 60-100% humidity.
How Often Should You Water Java fern?
As a fully submerged plant, ensure sufficient water circulation to provide necessary nutrients.
How Much Light Does Java fern Need?
Avoid intense direct light, which can promote algae growth on its slow-growing leaves.
What Is the Best Soil for Java fern?
The rhizome must remain exposed to open water; if buried in sand or gravel, it will quickly rot.
What Pot Should You Use for Java fern?
Do not use a traditional pot; attach to a root, stone, or decor using fishing line.
Care Schedule
Fertilize
Every 30 days
What Is Java fern and Where Does It Come From?
Leptochilus pteropus, better known as Java fern, is an epiphytic aquatic plant native to Southeast Asia. It features creeping rhizomes and leathery green leaves. It is one of the most popular plants in the aquarium hobby due to its extreme hardiness and its ability to grow attached to rocks or driftwood rather than being planted in the substrate.
How to Propagate Java fern?
Rhizome division
- Do not tie the thread too tightly to avoid damaging the rhizome.
- 1 Identification
Locate a healthy rhizome with at least 3 or 4 leaves.
- 2 Cutting
Cleanly cut the rhizome using sterilized scissors.
- 3 Fixing
Attach the new section to a hard surface (wood or stone) without burying the roots.
Materials needed:
Adventitious plantlets
- Leaves that turn brown often produce more plantlets before dying.
- 1 Observation
Wait for small plantlets to form on the edges or tips of old leaves.
- 2 Separation
Once the plantlet has a few roots, gently detach it from the mother leaf.
- 3 Installation
Let it float or attach it to a small support.
Materials needed:
How Big Does Java fern Grow?
TLDR: Java fern can reach up to 35cm tall with Slow growth rate.
Max height
35cm
Spread
25cm
Growth rate
Slow
Foliage
Evergreen
Plant Uses
Ornamental
Great for decoration
Is your plant showing symptoms?
Click on the symptom to discover possible causes:
Meaning & Symbolism
Represents resilience and adaptation in aquatic environments.
Compare with similar plants
| Attribute | Difficulty | Light | Watering | Pet Safe |
|---|---|---|---|---|
| Field Maple | Easy | Bright indirect | 14d | ✓ |
| Silver Birch | Easy | Direct sun | 14d | ✓ |
| Common Blanketflower | Easy | Direct sun | 10d | ✓ |
| Cushion Bush | Easy | Direct sun | 14d | ✓ |
