Lagenandra koenigii (Schott) Thwaites

• Genus: Lagenandra
• Botanical Background: Described by botanist Heinrich Wilhelm Schott and was later refined by George Henry Kendrick Thwaites. It was named after the Koenig family, who were instrumental in early botanical explorations of the region.

• Geographical Range: Native to the tropical wetlands and riverbanks of South India and Sri Lanka, Lagenandra koenigii thrives in humid, waterlogged environments, typically found in shallow waters of lakes and slow-moving streams.
• Environment: Thrives in conditions of high humidity and moderate temperatures. It is most commonly found in areas with rich, slightly acidic soils and a steady water supply, often submerged or with its roots in shallow water.

Leaves

• Broad, ovate, and glossy
• Dark green coloration
• Around 30 cm long and 20 cm wide
• Smooth texture with a slight sheen

Inflorescence (Spadix & Spathe)

• Pale spathe and spadix
• Particularly large but is visually striking

Growth Habit

• Rhizomatous aquatic species
• Grows along the edges of water bodies, often seen in partially submerged conditions

Light Requirements

• Bright, indirect light
• Direct sunlight may cause leaf scorch

Watering & Humidity

• Consistently moist conditions
• Regular watering
• High humidity levels (60-80% humidity)

Soil & Potting Mix

• A well-draining, moisture-retentive mix
• A blend of peat, perlite, and orchid bark
• A shallow and wide container

Temperature & Fertilizer

• Temperatures 18°C to 28°C (64°F to 82°F)
• Fertilizing every two to four weeks with a balanced liquid fertilizer during the growing season

Division and Stem Cuttings

• Division of rhizomes
• Should be done when the plant becomes too large or overcrowded

Seeds

• Viable seeds can germinate under the right conditions, requiring warm temperatures and a moist environment

Typical Issues

• Aphids, spider mites, and mealybugs
• Root rot

Treatment Recommendations

• Insecticidal soap
• Good drainage
• Regularly inspect for pests

• Limited distribution
• Grown in botanical collections due to its unique characteristics

• Large, glossy leaves and aquatic growth habit

Wild Population Status

• Endangered
• Its specific habitat in the Western Ghats faces threats from habitat destruction and climate change

Market Availability

• Rare in the market
• Mostly found in specialized collections or research institutions