Bau hayi (S.Y.Wong & P.C.Boyce) S.Y.Wong & P.C.Boyce

• Genus: Bau
• Botanical Background: Described by S.Y.Wong and P.C.Boyce, this species has attracted attention for its unique floral and vegetative traits. Its identification has contributed to a better understanding of aroid diversity in tropical regions.

• Geographical Range: Native to tropical lowland rainforests of Southeast Asia, with occurrences reported from regions such as Borneo.
• Environment: Thrives in warm, humid environments with well-drained soils. Naturally grows under shaded canopy conditions, where consistent moisture and moderate light prevail.

Leaves

• Large and broad
• Leathery texture and rich green coloration
• May display subtle patterning

Inflorescence (Spadix & Spathe)

• Consists of a slender spadix encased by a broad spathe that offers a contrast in colors
• Spathe can emit a mild scent, attracting specialized pollinators

Growth Habit

• Grows terrestrially from a robust rhizome, often forming clustered growths
• Growth habit supports its stability in its native forest floor environment

Light Requirements

• Prefers bright, indirect light

Watering & Humidity

• Regular watering is advised to keep the soil evenly moist without becoming waterlogged
• High humidity is essential for optimal growth

Soil & Potting Mix

• A well-draining, organic-rich potting mix is ideal
• Containers should have ample drainage to prevent excess moisture

Temperature & Fertilizer

• Maintain temperatures between 65°F and 80°F (18°C to 27°C)
• Balanced fertilizer applied during the growing season will support healthy development

Division and Cuttings

• Division of its rhizomes
• Typically performed during repotting

Seeds

• Less common owing to slower germination rates and extended growth periods

Typical Issues

• Prone to spider mites and fungal root rot

Treatment Recommendations

• Treat pest infestations with organic insecticidal soap
• Ensure proper drainage to avoid fungal issues
• Use chemical treatments only when necessary and with caution
  

• Plays an ecological role in tropical understory habitats
• Noted for its unique aesthetic

• Unusual leaf structure and distinctive inflorescence contribute to its appeal as a rare and decorative addition to specialized plant collections

Wild Population Status

• Habitat loss in tropical regions remains a potential concern for its long-term survival

Market Availability

• Relatively rare in the horticultural trade
• Highly prized by dedicated collectors due to its uncommon occurrence