Lagenandra ovata (L.) Thwaites

• Genus: Lagenandra
• Botanical Background: Described by botanist Robert Thwaites. It is one of the many species in the Lagenandra genus, which are known for their aquatic and marshland habitats.

• Geographical Range:  Native to Sri Lanka, primarily found in freshwater habitats such as marshes, rivers, and ponds at low to moderate altitudes.
• Environment: Prefers wet conditions, with high humidity, nutrient-rich, and slightly acidic to neutral soils. It thrives in moderate climates, with temperatures ranging from 20°C to 30°C.

Leaves

• Large, heart-shaped, and glossy
• Prominent, smooth texture
• Green with slight variations
• Size can reach up to 30 cm in length

Inflorescence (Spadix & Spathe)

• A spathe that can be white or pale green surrounding a yellow spadix

Growth Habit

• Aquatic plant
• Grows in shallow water, either floating or partially submerged
• Forms a dense clump and may also develop rhizomes

Light Requirements

• Bright, indirect light
• Can tolerate moderate light conditions

Watering & Humidity

• Consistently moist conditions
• The soil or water remaining damp
• High humidity levels

Soil & Potting Mix

• A well-draining, loamy soil or a semi-aquatic mix
• Ensure the roots are submerged in shallow water or a moist substrate

Temperature & Fertilizer

• Temperatures between 20°C and 30°C
• Fertilize lightly during the growing season with a balanced liquid fertilize

Division and Stem Cuttings

• Propagation is by division
• Rhizomes are separated and replanted
• Stem cuttings can also be taken, though less frequently

Seeds

• This method requires patience as germination can be slow
• Must be kept moist and warm for optimal growth

Typical Issues

• Aphids, snails, and mealybugs
• Root rot

Treatment Recommendations

• Insecticidal soap or neem oil
• Ensure good water drainage
• Avoid overwatering

• Aesthetic appeal in water gardens and natural landscapes
• Used in local traditional medicine for various purposes

• Ornamental and glossy foliage
• Ability to adapt to both submerged and emergent growth condition
• Versatile in landscaping

Wild Population Status

• Not currently listed as endangered
• Habitat loss and water pollution may pose risks to its natural population

Market Availability

• Available in specialized plant nurseries
• Not considered rare but is less commonly found than other more popular aquatic species