Amorphophallus atroviridis Hett.

• Genus: Amorphophallus 
• Botanical Background: Described by botanist Hett, has captured the interest of researchers with its infrequent blooms and distinctive morphology and its study has contributed to broader understandings of tropical aroid diversity.

• Geographical Range: Indigenous to tropical forests in parts of Southeast Asia.
• Environment: Naturally thrives in humid, shaded forest floors with rich, well-drained soils; it favors a warm and stable climate typical of tropical rainforests, where high humidity and consistent moisture support its growth.

Leaves

• Large and lobed
• Deep green hue and a glossy texture
• Distinct venation patterns

Inflorescence (Spadix & Spathe)

• Characterized by a dark green spathe that encloses a central spadix
• May emit a subtle scent during its short flowering period
• Attracting specialized pollinators through visual and olfactory cues

Growth Habit

• This terrestrial plant grows from a tuberous rhizome that stores nutrients for periods of dormancy
• Robust structure supports a seasonal growth cycle

Light Requirements

• Bright, indirect light
• Mimics the filtered light of its natural forest floor habitat

Watering & Humidity

• Consistent watering to keep the soil evenly moist is crucial
• High humidity is ideal
• Consider occasional misting or placement in a humid environment

Soil & Potting Mix

• A well-draining, organic-rich potting mix is ideal
• Containers that can comfortably accommodate its expanding tuber and provides ample drainage

Temperature & Fertilizer

• Optimal temperatures range from 75°F to 85°F
• Balanced slow-release fertilizer applied monthly 

Division and Cuttings

• Most effective propagation technique is through division of the tubers
• Ensure that each section contains an active growth bud to encourage successful establishment

Seeds

• Require controlled warm conditions and high humidity for successful germination

Typical Issues

• Spider mites and mealybugs
• Root rot can occur if the plant is overwatered or planted in poorly draining soil

Treatment Recommendations

• Use insecticidal soap for pest control or neem oil for an organic solution
• Fungicide, and ensure proper drainage in the pot

• Celebrated for its infrequent and striking bloom, which draws significant attention from both botanists and plant collectors
• Unique dark inflorescence and impressive foliage

• A coveted specimen in botanical gardens and private collections
• Prized for its rarity and visual impact

Wild Population Status

• While specific data on wild populations is limited, the ongoing loss of tropical forest habitats poses potential risks
• Conservation initiatives are essential for protecting its natural environment

Market Availability

• Not commonly available in the horticultural trade and is sought after by dedicated collectors