Anthurium marleenianum Croat

• Genus: Anthurium
• Botanical Background: Described by botanist Thomas B. Croat; it belongs to a diverse group of Anthurium species commonly studied for both scientific classification and horticultural interest.

• Geographical Range: Native to tropical rainforests of Central America, particularly in regions with high humidity and a warm climate.
• Environment: Moist, shaded environments with temperatures ranging from 20°C to 30°C; prefers well-drained, organic-rich soils and high humidity levels (60% or more).

Leaves

• Glossy, large, and heart-shaped with a dark green color
• Can grow up to 45 cm in length
• Smooth and leathery textures

Inflorescence (Spadix & Spathe)

• Spadix is white, surrounded by a dark green to purple spathe
• Spathe, which typically measures 10–12 cm, has a unique glossy appearance
• Not aromatic

Growth Habit

• Epiphytic species
• Grows on other plants, often on tree trunks or other surfaces
• Does not produce tubers

Light Requirements

• Bright, indirect
• Direct sunlight can scorch the leaves

Watering & Humidity

• Regular watering
• Soil consistently moist but not waterlogged
• High humidity with minimum of 60%

Soil & Potting Mix

• A well-draining, peat-based mix, possibly supplemented with orchid bark
• A hanging or large pot works well

Temperature & Fertilizer

• Temperature range is between 20°C to 30°C

• Fertilize monthly during the growing season with a balanced liquid fertilizer, reducing feed in the cooler months

Division and Stem Cuttings

• Most common propagation method is division
• Rhizomes are carefully separated and replanted
• Stem cuttings with a node can also be rooted in water or directly in soil

Seeds

• Can be propagated by seeds, though this method is slower
• Requires specific conditions for germination, including a warm, moist environment and a sterile seed-starting mix

Typical Issues

• Spider mites, mealybugs, and aphids 
• Root rot

Treatment Recommendations

• Insecticidal soap or neem oil
• Ensure proper drainage
• Reduce watering frequency

• Valued for its aesthetic appeal
• Provides habitat for various species of insects and other small fauna

• Sought after by collectors for its distinctive, shiny leaves and elegant white spadix
• Prized specimen in both indoor and tropical garden collections

Wild Population Status

• Not currently listed as endangered
• Faces potential threats from habitat loss in its native regions

Market Availability

• Available in specialty plant nurseries
• Rarity in the wild makes it somewhat more expensive compared to other Anthurium species