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Nepenthes Bicalcarata (Nepenthes bicalcarata)

Source: Wikimedia Commons

Nepenthes Bicalcarata

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Nepenthes bicalcarata

A Nepenthes with two fang-like projections at the pitcher mouth, famous for ant symbiosis.

Growing Difficulty
Advanced
Temperature
22〜35℃
Lifespan
10+ years
Size
Vine 50cm-meters
Humidity
60〜90%
Watering & Fertilizer
Insects

Overview

Nepenthes bicalcarata is a large lowland species native to the peat swamp forests of Borneo, particularly Sarawak. It is immediately recognizable by two prominent fang-like spurs extending from the pitcher's peristome (the rim of the mouth) beneath the lid—a feature unique among Nepenthes and the origin of its Latin name. The fangs bear large nectar glands, but their function is not clear. Camponotus schmitzi ants live inside the swollen tendrils and pull up and eat large prey that has fallen into the digestive fluid. Research has shown that the ants clean the peristome to keep the traps efficient, and that the plant obtains nitrogen from the ants' excrement. The species grows very large and requires ample space.

Lifespan of the Nepenthes Bicalcarata

The Nepenthes Bicalcarata lives 10+ years.

Size of the Nepenthes Bicalcarata

The Nepenthes Bicalcarata grows to Vine 50cm-meters.

Temperature & humidity for the Nepenthes Bicalcarata

The ideal temperature for the Nepenthes Bicalcarata is 22〜35℃.

Cultivation requires consistently warm temperatures (20–35°C), high humidity, and sphagnum media with good moisture retention.

Basic Info

Origin

Borneo (primarily Sarawak), lowland peat swamp forests

Lifespan

10+ years

Size

Vine 50cm-meters

Temperature

22〜35℃

Humidity

60〜90%

Watering & Fertilizer

Insects

Growing Tips

Light & Placement

Avoid strong direct sun and keep it in bright shade. It grows large, so it needs plenty of space.

Watering

Keep the medium moist with purified water or rainwater. Maintain high humidity to match its warm, humid needs.

Temperature & Overwintering

It prefers warm, humid conditions at 22-35°C. As a lowland species, keep it warm through winter without letting temperatures drop.

Soil & Repotting

Use sphagnum moss alone. A large species whose vines reach several meters, so repot into a generously sized pot.

Pests & Cautions

Strong direct sun and low temperatures are the main causes of failure. Grow it where space and warmth can be guaranteed.

CarnivorousNepenthesFangsSymbiosis

Nepenthes Bicalcarata FAQ

QWhat is the growing difficulty level for Nepenthes Bicalcarata?
A

Advanced. A variety suitable for advanced growers. Requires advanced cultivation techniques and specialized equipment, with careful environmental adjustments needed.

QWhat is the ideal temperature for Nepenthes Bicalcarata?
A

The ideal temperature for Nepenthes Bicalcarata is 22〜35℃. Avoid sudden temperature changes and maintain a stable environment.

QWhat is the lifespan of Nepenthes Bicalcarata?
A

The average lifespan of Nepenthes Bicalcarata is 10+ years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.

QHow large does Nepenthes Bicalcarata get?
A

The mature size of Nepenthes Bicalcarata is Vine 50cm-meters. This may vary slightly depending on cultivation environment and individual differences.

QHow should I water and fertilize Nepenthes Bicalcarata?
A

Nepenthes Bicalcarata: watering & fertilizer — Insects. Aim for appropriate frequency and amount.

QWhat is the typical price for Nepenthes Bicalcarata?
A

The price of Nepenthes Bicalcarata varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.

Last updated: October 2, 2026

References & Sources

Edited & verified by: GrowerDirect Editorial Team

The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.

Primary sources

Taxonomy & Authority

Accepted name: Nepenthes bicalcarata Hook.f.

Synonyms: Nepenthes dyak S.Moore

Authority databases: GBIF · POWO · ICPS cultivar registration (International Carnivorous Plant Society)

Nomenclature follows global taxonomic authority databases.

Regulations & Conservation Status

CITES Appendix II

The genus Nepenthes, except for rajah/khasiana, is CITES Appendix II at the genus level. International trade requires permits.

Sources: CITES Appendices (carnivorous plants) - ICPS/Barry Rice / CITES & Carnivorous Plant Checklist (RBG Kew)

Regulations may change. Always verify the latest information with the relevant authorities.

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