Manaus Begonia

Basic Information

Common Name: Manaus Begonia

Scientific Name: Begonia ‘Manaus’

Native Habitat: Hybrid cultivar; parent species originate from South America

History / Discovery / Cultivator

Begonia ‘Manaus’ is a captivating hybrid cultivar, celebrated for its striking foliage and relatively easy care. Its precise origin and the details of its development are somewhat obscured, a common occurrence with many hybrid begonias. However, understanding its parentage and the broader history of begonia cultivation provides valuable insight.

Begonias, as a genus, boast a rich history dating back to the 17th century when French botanist Charles Plumier discovered several species in the West Indies. He named the genus after Michel Bégon, a French patron of botany. Since then, countless species and hybrids have been identified, cataloged, and cultivated, making Begonia one of the largest genera of flowering plants.

‘Manaus’ likely emerged in the latter half of the 20th century, a period marked by significant advancements in horticultural techniques and a growing interest in exotic and unusual plants. Plant breeders, both amateur and professional, began experimenting with various begonia species, crossing them to create cultivars with enhanced characteristics such as unique leaf patterns, vibrant colors, and improved resistance to diseases.

Given its name, ‘Manaus’, it is plausible that one or both of the parent species in this hybrid originates from the Amazon rainforest region of Brazil, specifically near the city of Manaus. This region is known for its incredible biodiversity and is a hotbed for begonia species. The name likely reflects either the geographical origin of its parentage or the lush, vibrant aesthetic that the hybrid evokes, reminiscent of the Amazonian environment.

While the exact cultivator or breeder remains unknown, ‘Manaus’ quickly gained popularity among begonia enthusiasts for its visual appeal and relatively robust nature. Its leaves are typically characterized by a dark green background adorned with prominent silver or light green veins, creating a striking contrast. The leaf shape can vary, but generally exhibits a slightly ruffled or textured surface, adding to its overall allure.

The popularity of ‘Manaus’ also reflects the increasing trend of collecting unique and unusual houseplants. As interest in indoor gardening continues to grow, plant enthusiasts are constantly seeking out cultivars that offer visual interest and are relatively easy to maintain. ‘Manaus’ fits this bill perfectly, making it a sought-after addition to many plant collections. Its cultivation has spread globally, available now through many nurseries and online plant retailers.

Further research into the hybridization records of prominent begonia nurseries from the late 20th century might shed light on the specific individual or organization responsible for its creation. However, in the absence of definitive documentation, ‘Manaus’ remains a testament to the artistry and ingenuity of plant breeders, who continue to create stunning new varieties that captivate plant lovers around the world. It is a beautiful example of the diversity and adaptability of the Begonia genus.

Plant Care Summary

Botanical Insights

Adaptations

Begonia ‘Manaus’, being a hybrid, doesn’t have specific adaptations tied to a particular native environment. However, its characteristics reflect adaptations common to begonias and plants from humid, shaded environments. The broad leaves are adapted for efficient light capture in the understory of forests. The textured surface of the leaves may help to channel water and nutrients towards the roots. Its sensitivity to direct sunlight highlights its adaptation to shaded conditions. As a houseplant, its success relies on mimicking the humid and moderately moist conditions of its parentage, making it suitable for terrariums or humid environments like bathrooms. Its adaptation to well-draining soil prevents root rot, a common issue in overly moist conditions.

Propagation Methods

Begonia ‘Manaus’ can be effectively propagated using several methods:

• Stem Cuttings: This is a common and relatively easy method. Take a cutting with a few leaves and nodes, remove the bottom leaves, and place it in water or directly into a well-draining potting mix.
• Leaf Cuttings: Begonia leaves can be cut into wedges and placed on a moist substrate. New plantlets will emerge from the cut edges. This is a slower process than stem cuttings.
• Division: Mature plants can be carefully divided at the root ball, ensuring each division has sufficient roots and foliage. This is best done during repotting.

Toxicology

Begonia ‘Manaus’ is considered toxic, particularly to cats and dogs. All parts of the plant contain soluble calcium oxalates. If ingested, these crystals cause intense burning and irritation of the mouth, tongue, and throat. Symptoms in pets include excessive drooling, pawing at the face, vomiting, and difficulty swallowing. In severe cases, swelling of the upper airway can occur, though this is rare. While rarely fatal, ingestion can cause significant discomfort and requires veterinary attention. For humans, ingestion can cause similar, though usually milder, symptoms of oral irritation and discomfort.

Common Problems

Pests:

• Mealybugs
• Spider mites
• Aphids

Diseases:

• Root rot (caused by overwatering)
• Powdery mildew
• Botrytis blight

Other:

• Leaf yellowing: Can be caused by overwatering, underwatering, nutrient deficiency, or excessive direct sunlight.
• Browning leaf tips: Often caused by low humidity or inconsistent watering.
• Leggy growth: Insufficient light can cause the plant to stretch and become leggy.

Rarity & Value

Rarity:

Begonia ‘Manaus’ is not exceptionally rare, but it’s not always readily available at big box stores. Its relatively slow growth rate and the specific care requirements can make it less common than more easily propagated and widely adaptable begonias. The unique and attractive foliage does keep demand relatively stable.

Value:

The value of a Begonia ‘Manaus’ specimen is influenced by several factors. Size is a primary determinant, with larger, more established plants commanding higher prices. The overall health and vibrancy of the foliage are also crucial. Specimens with particularly well-defined vein patterns and deep green leaf color are more desirable. Mature plants in decorative pots also increase value. Current trends in plant collecting also play a role, as demand can fluctuate based on popularity within online plant communities and social media.