Rieger Begonia (Begonia hiemalis)

Rieger Begonia

Begonia hiemalis

Ruffled blooms in soft pastels bring gentle winter cheer. Evergreen flowering perennial; common name: Rieger Begonia.

Partial sun
2/week
Moderate
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Plant Needs

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Sunlight Bright indirect light; avoid direct midday sun to prevent leaf scorching
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Watering Water when the top 2 cm of soil feels dry; avoid overwatering to prevent root rot
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Temperature Thrives at 18–22°C; protect from temperatures below 12°C to avoid leaf drop and stunted growth
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Characteristics

  • Leaf: Oval to heart-shaped, glossy green, serrated margins
  • Flower: Double or semi-double blooms in pink, red, white, or peach; clustered at stem tips
  • Stem: Succulent, green to reddish-brown, upright branching habit
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Care Guide

Watering

Allow topsoil to dry completely between waterings; reduce frequency during hot, dry spells

Fertilization

Diluted balanced liquid fertilizer every 2 weeks. Discontinue fertilization during peak flowering to avoid bud drop

Banana peel tea:Soak chopped banana peels in water for 3 days; dilute 1:10 with water for root drenching; discard solids to avoid pest infestations
Pruning
  • Deadhead spent blooms regularly to encourage continuous flowering
  • Trim leggy stems in early spring to maintain a compact, bushy shape
  • Remove yellowing or damaged leaves to improve airflow and reduce disease risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; ingestion leads to oral pain, vomiting, and difficulty swallowing

Humans: Contains calcium oxalate crystals; ingestion causes oral irritation and swelling

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Garden Uses & Culture

Culture: Symbolizes warmth and cheer during the winter months

Usage: Indoor ornamental plant; winter flowering display for windowsills and tabletops