Anthurium upalaense Croat & R.A.Baker

• Genus: Anthurium
• Botanical Background: Described by botanists Croat and R.A. Baker in the early 1990s, primarily based on specimens found in the mountainous regions of Central America.

• Geographical Range: Native to the cloud forests of Costa Rica and Panama, typically growing at elevations between 1,000 and 2,000 meters.
• Environment: Thrives in humid environments with well-drained, acidic soils and moderate temperatures; requires high humidity and cool conditions to replicate its natural mountain habitat.

Leaves

• Large, heart-shaped, and glossy with prominent veins
• They are a vibrant green
• Can grow up to 30 cm in length, with a leathery texture that is resistant to drying out

Inflorescence (Spadix & Spathe)

• The spadix is typical of Anthurium species, with a white or pale cream coloration, surrounded by a green spathe
• Emits a faint odor to attract pollinators

Growth Habit

• A terrestrial plant that grows as a herbaceous perennial, typically forming clumps and spreading through its root system
• Does not produce tubers but spreads via rhizomes

Light Requirements

• Bright, indirect light
• Should be protected from direct sunlight to avoid leaf burn

Watering & Humidity

• Regular watering is necessary, ensuring that the soil remains moist but not waterlogged
• Requires high humidity levels, typically above 60%

Soil & Potting Mix

• A well-draining, acidic potting soil rich in organic matter is ideal
• A mix of peat, perlite, and orchid bark works well

Temperature & Fertilizer

• Ideal temperature range is between 18–24°C (64–75°F)
• Balanced liquid fertilizer monthly during the growing season

Division and Cuttings

• Typically done via rhizome division
• New shoots are separated and potted individually

Seeds

• Not commonly practiced due to the species' slow growth and the difficulty in obtaining viable seeds

Typical Issues

• Spider mites, aphids, and mealybugs
• Root rot is another concern in overly wet conditions

Treatment Recommendations

• Treat pest infestations with insecticidal soap or neem oil
• For root rot, ensure proper drainage and avoid overwatering
• Fungicide may help if the rot is due to fungal infections

• Has cultural significance in local traditions, though it is not as widely known in ornamental horticulture
• Prized for its striking foliage and ability to thrive in shaded, humid conditions

• An excellent choice for tropical or greenhouse environments

Wild Population Status

• There are no major conservation concerns listed for Anthurium upalaense, though habitat destruction in Central America could potentially impact populations

Market Availability

• Not widely available in the commercial market
• May be more common in specialized collections or botanical gardens