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Filtered Sun
Provide bright, filtered sunlight or partial shade. Protect from scorching midday sun.
Reference image Lymanbensonia incachacana
Incachaca Lymanbensonia
Overview
Lymanbensonia incachacana is a unique epiphytic cactus species belonging to the family Cactaceae, native to the seasonally dry tropical and montane forests of Bolivia 1. Unlike typical desert cacti, this species has evolved to thrive in high-humidity, dappled-light environments high up on forest canopies.
Taxonomy and Naming
Originally described under different genera including Pfeiffera, modern phylogenetic analyses have placed it within the genus Lymanbensonia 2. The specific epithet "incachacana" refers to the geographical location of Incachaca in Bolivia, where the type specimen was discovered.
Distribution and Habitat
This species is endemic to Bolivia, particularly within the humid montane forests (Yungas) of Cochabamba at elevations ranging from 2,000 to 2,500 meters. It grows predominantly as an epiphyte on tree branches, benefiting from the frequent cloud cover and high relative humidity of its native biome 1.
Appearance
Lymanbensonia incachacana features pendulous or sprawling stems that are often flattened or segmented, displaying a rich green hue. The areoles bear fine, soft, bristle-like spines. It produces small, delicate, cream-to-pinkish flowers along the margins of the stems, followed by translucent berries.
Cultivation
In cultivation, it requires conditions that mimic its forest habitat. It thrives in filtered sunlight or bright indirect light, as direct midday sun can bleach or burn the stems. The potting medium must be highly porous and rich in organic material, similar to an orchid mix, and kept moderately moist during active growth.
Common Pitfalls
Treating this epiphyte as a desert cactus by allowing the soil to remain bone-dry for extended periods is a common mistake. Conversely, waterlogged, heavy soils will quickly lead to root rot.
References
Watering
7-20 Days
Keep the substrate slightly moist in summer, reducing watering significantly in winter.
Soil
Slightly acidic, well-draining epiphytic cactus mix high in organic matter and pumice
An acidic, well-draining epiphytic mix consisting of orchid bark, peat, and pumice is ideal.
Safety
Pet Friendly
Non-toxic to cats and dogs, but handle with care due to tiny bristle-like spines.
Difficulty
Moderate
Moderately easy if the atmospheric humidity is high and the root system is kept aerated.
Native Habitat
Bolivia
This species originates from the montane cloud forests of Bolivia, specifically found growing on mossy tree branches in the Yungas region under humid, foggy conditions.
Frequently Asked Questions
Is Lymanbensonia incachacana a desert cactus?
No, it is an epiphytic cactus that grows on trees in humid montane forests. It requires more humidity and less direct sun than typical desert cacti.
What kind of soil should be used in a pot at home?
You should prepare a highly porous, slightly acidic epiphytic mix by adding plenty of pine bark (orchid bark) and pumice to standard cactus soil.
How often should it be watered?
Water it approximately once a week in summer when the topsoil dries slightly, and reduce to once every 2-3 weeks in winter, allowing the soil to dry out fully.
What light level does it prefer?
It prefers bright, filtered sunlight or partial shade. Direct, harsh midday sun can cause yellowing and sunburn on the stems.
Is it toxic to pets?
Lymanbensonia incachacana is non-toxic to cats and dogs and can be grown safely around pets.
How can I encourage it to bloom?
Keeping the plant in a cooler environment (8-12°C) during winter and reducing water will trigger a winter rest, promoting spring blooms.
What is its growth rate?
It has a moderate growth rate when provided with adequate humidity and warmth. Its cascading stems will gracefully spill over the pot over time.
What causes shriveling in the stems?
Shriveling is usually caused by prolonged under-watering or, conversely, root rot due to over-watering. Check the root health immediately.
What should the air humidity be?
As an epiphytic species, it prefers at least 50% humidity. Misting the surroundings during very dry periods can be beneficial.
When should it be repotted?
Repot it every 2-3 years in early spring, moving up to a slightly larger container only when the roots have completely filled the current pot.