Lazarum johnsonianum (A.Hay & S.Taylor) M.D.Barrett, A.Hay & Hett.

• Genus: Lazarum johnsonianum
• Botanical Background: Initially described by A.Hay and S.Taylor, it was later reclassified by M.D.Barrett, A.Hay & Hett. Their work has contributed significantly to our understanding of wetland aroid diversity and evolution.

• Geographical Range: Native to tropical wetland regions
• Environment: Thrives in warm, humid conditions with moist, well-draining soils. It is typically found in partially shaded areas with consistent moisture, reflective of its natural wetland habitat.

Leaves

• Distinctly shaped, often elongated with intricate margins and a smooth textureMedium-sized, with a distinctive pattern that appears sunlit and vibrant
• Exhibit a vibrant green coloration, sometimes with subtle patterning that enhances their ornamental appeal

Inflorescence (Spadix & Spathe)

• Produces a typical aroid inflorescence comprising a slender spadix enclosed by a protective spathe
• Modest flowers primarily attract insect pollinators

Growth Habit

• Terrestrial plant that grows from a rhizome, forming clumps over time. Its compact habit makes it well-suited for container cultivation and wetland garden displays

Light Requirements

• Bright, indirect light to maintain vibrant foliage without exposing the plant to damaging direct sun

Watering & Humidity

• Keep the soil evenly moist and ensure high humidity to mimic its natural environment
• Avoid waterlogging to prevent root rot

Soil & Potting Mix

• Use a rich, well-draining potting mix with added organic matter
• Containers should have adequate drainage to support healthy root development

Temperature & Fertilizer

• Ideal temperatures range from 65°F to 85°F
• Balanced and slow-release fertilizer during the growing season to encourage robust growth

Division

• Most common propagation method is rhizome division
• When repotting, divide the plant so that each section has an active growth point

Seeds

• Propagation is possible but less common due to variable germination rates and a longer maturation period compared to vegetative propagation

Typical Issues

• Spider mites, and mealybugs
• Overwatering can lead to fungal root rot, especially in poorly ventilated conditions

Treatment Recommendations

• Organic treatments like neem oil or insecticidal soap are effective for controlling pests
• Maintaining proper watering practices and ensuring good air circulation help prevent fungal issues

• Named in honor of a notable botanist, reflecting its importance in botanical research on wetland aroids
• Unique leaf structure has also been of interest in ecological studies

• Unusual leaf shape and overall ornamental appeal
• Its adaptability to wetland conditions makes it a striking addition to specialized tropical plant collections
  

Wild Population Status

• Detailed conservation data are limited
• Protecting the natural wetland habitats is crucial for the survival of Lazarum johnsonianum and similar species

Market Availability

• Relatively rare in cultivation and is primarily available through specialized nurseries and botanical collections