Amorphophallus yunnanensis Engl.

• Genus: Amorphophallus
• Botanical Background: Described by the renowned botanist Adolf Engler, this species has been historically noted for its enigmatic floral structure. Over time, it has attracted attention in both horticultural and academic circles for its distinct morphology.

• Geographical Range: Native to the mountainous and subtropical regions of Yunnan in Chin
• Environment: Favors humid, well-drained soils in forested regions; grows in areas with a warm, wet growing season followed by a cooler, drier period, providing a natural rhythm to its growth cycle.

Leaves

• Large and divided, with a textured surface
• Mix of deep green hues

Inflorescence (Spadix & Spathe)

• A sizeable spadix enclosed in a delicate, often patterned spathe
• Can emit a subtle scent aimed at attracting specific pollinator

Growth Habit

• A tuberous perennial that grows from an underground corm
• Exhibits a terrestrial habit, emerging in bursts during its growing season

Light Requirements

• Bright, indirect light and can tolerate partial shade, mirroring its forest understorey origin

Watering & Humidity

• Regular watering is needed during the active growing season, ensuring the soil remains moist but well-drained
• High humidity is beneficial, especially in warmer months

Soil & Potting Mix

• A well-aerated, organic-rich potting mix with ample drainage is ideal
• A mix combining peat, perlite, and compost often works well in replicating its native soil conditions

Temperature & Fertilizer

• Optimal temperature range is between 65°F and 80°F
• A balanced liquid fertilizer applied monthly supports vigorous growth, while reduced feeding is advised during dormancy

Division and Cuttings

• Most reliable method is division of the corm
• Separating a portion with at least one growth node offers the best chance for successful propagation

Seeds

• Although less common, propagation from seed is possible. 
• Require a warm, humid environment and careful control of moisture for successful germination

Typical Issues

• Spider mites and mealybugs
• Overwatering can predispose the plant to root rot

Treatment Recommendations

• Organic insecticidal soaps or neem oil are effective against pest infestation
• Fungicidal treatments and cultural practices such as well-regulated watering help prevent fungal issues

• Plays a role in local folklore and is sometimes featured in regional botanical studies due to its distinctive reproductive structures and pollination strategies

• Prized for its rare and intriguing floral display and ornamental foliage, which adds a unique element to curated tropical plant collections

Wild Population Status

• Considered limited due to their specific habitat requirements

Market Availability

• Available only through specialty growers or as part of curated collections rather than mainstream horticultural outlets