Bonsai Begonia (Begonia dregei)

Bonsai Begonia

Begonia dregei

A captivating caudiciform plant that naturally mimics a miniature tree. Indoor ornamental; other names: Maple-leaf Begonia.

Prefers bright, indirect sunlight; avoid harsh afternoon sun which can scorch the leaves.
1/week
Moderate
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Plant Needs

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Sunlight Prefers bright, indirect sunlight; avoid harsh afternoon sun which can scorch the leaves.
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Watering Allow the top inch of soil to dry out completely between waterings; the caudex stores water, making it sensitive to overwatering.
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Temperature Thrives in average room temperatures; protect from drafts and temperatures below 10°C.
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Characteristics

  • Leaves: Asymmetrical, deeply lobed resembling small maple leaves, green with occasional white spots and reddish veins beneath;
  • Flowers: Small, white, monoecious, borne in loose clusters on slender stems;
  • Stem: Features a swollen, fleshy basal caudex that stores water and develops a woody appearance, giving it a natural tree-like structure.
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Care Guide

Watering

Water thoroughly when the topsoil feels dry, ensuring excess water drains away.

Fertilization

Apply a balanced, diluted liquid fertilizer to support new leaf growth.. Do not fertilize during the winter dormancy period.

Banana Peel Tea:Soak chopped banana peels in water for 24-48 hours, strain, and dilute 1:1 with water. Use this to water the plant during the growing season to support root health and blooming. Avoid leaving peel residue on the soil to prevent gnats.
Pruning
  • Pinch back new growth tips regularly to encourage a dense, bushy canopy;
  • Remove any yellowing or dead leaves to maintain airflow and aesthetics;
  • Prune elongated stems to maintain the miniature "tree" or bonsai silhouette.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Toxic to cats per ASPCA. Ingestion causes intense burning and irritation of the mouth, tongue, and lips.

Humans: Contains soluble calcium oxalates which can cause oral irritation and burning if ingested.

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Garden Uses & Culture

Culture: Highly prized in Western indoor horticulture and terrarium communities as a "cheater's bonsai," offering the aesthetic of an ancient tree in a fraction of the time required for traditional woody bonsai.

Usage: Cultivated primarily as an indoor ornamental plant, terrarium specimen, and a popular subject for indoor bonsai styling.