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Amorphophallus henryi N.E.Br.

Introduction & Overview

Common and Scientific Names

  • Scientific Name: Amorphophallus henryi N.E.Br.
  • Common Name: Henry’s Aroid (occasionally referred to by collectors)

Quick Facts

  • Origin: Native to forested regions of East Asia
  • Features: Striking inflorescence and large, distinctive leaves

Taxonomy & Classification

  • Genus: Amorphophallus
  • Botanical Background: Described by N.E.Br., the species has attracted interest from early 20th-century botanists; its discovery and description reflect a period of extensive botanical exploration in Asia and contributed to our modern understanding of aroid diversity.

Natural Habitat & Distribution

  • Geographical Range: Native to selected regions of East Asia.
  • Environment: Naturally grows in humid, well-drained forest soils with abundant organic matter; favors warm conditions with a defined rainy season, typical of its native habitat, which supports its seasonal growth cycle.

Morphological Characteristics

Leaves

  • Large, palmate leaves with lobed edges
  • Deep green hue
  • Medium to deep green coloration

Inflorescence (Spadix & Spathe)

  • Features a distinct spadix encircled by a broad spathe
  • Spathe is often tinted in rich greens or purplish hues. showier species
  • When in bloom, the inflorescence can emit a notable scent to attract specific pollinators

Growth Habit

  • A terrestrial plant emerging from an underground tuber
  • A dormant period interspersed with rapid vegetative growth

Cultivation & Care

Light Requirements

  • Bright, indirect light
  • Mimicking the dappled light of a forest understory helps to maintain its vibrant foliage

Watering & Humidity

  • Regular watering is recommended during the active growing season
  • Maintaining high humidity without waterlogging the roots

Soil & Potting Mix

  • A loose, well-draining potting mix rich in organic material is idea
  • Balanced blend that replicates the forest floor conditions works best in container culture

Temperature & Fertilizer

  • Maintain temperatures above 60°F (16°C)
  • A balanced, water-soluble fertilizer applied every 4–6 weeks will support robust growth without overwhelming the plan

Propagation Methods

Division and Cuttings

  • Most reliable propagation method is the division of the tuber during the dormant phase

Seeds

  • Less common given the slow germination rate; when attempted, seeds require specific stratification and consistent moisture for successful sprouting

Common Pests & Diseases

Typical Issues

  • Spider mites and mealybugs
  • Fungal issues like root rot if the soil is overly moist

Treatment Recommendations

  • Insecticidal soap or neem oil
  • Improve soil drainage to prevent fungal infections

Notable Traits & Uses

  • Notable for its infrequent yet dramatic flowering, making its blooming event highly anticipated among enthusiasts
  • Prized for its unusual structure and rare appearances in bloom
  • Impressive foliage and singular inflorescence render it an attractive specimen in both private collections and botanical gardens

Conservation & Availability

Wild Population Status

  • Can be sparse, prompting localized conservation efforts to monitor and protect its natural habitat

Market Availability

  • Seldom found in mainstream horticulture due to its rarity and specialized growing requirement
  • Available through specialist nurseries or botanical exchanges

References & Resources

Further Reading

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