Petra's Sunfire Kalanchoe (Kalanchoe 'Petra’s Sunfire')

Petra's Sunfire Kalanchoe

Kalanchoe 'Petra’s Sunfire'

Vibrant red-edged foliage blazes like a miniature desert sunset. Succulent ornamental plant; common name: Petra's Sunfire Kalanchoe.

Full sun
1/week
Beginner
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Plant Needs

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Sunlight Bright direct or filtered sun; prolonged full sun intensifies the red leaf margins, while shade may cause leggy growth and faded color
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Watering Allow the entire soil medium to dry completely between waterings; avoid standing water to prevent root rot
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Temperature Thrives in 18–25℃; protect from frost below 10℃, as cold temperatures can damage fleshy leaves
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Characteristics

  • Leaf: Thick, fleshy ovate leaves with bright green centers and fiery red margins; arranged in opposite pairs
  • Flower: Clusters of small, tubular orange-red blooms on upright, branching stems
  • Stem: Short, woody basal stems that produce new rosette offsets with maturity
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Care Guide

Watering

Water when the top 5 cm of soil is fully dry

Fertilization

Diluted cactus fertilizer applied once monthly. Discontinue fertilization in autumn and winter to allow the plant to enter dormancy

Eggshell powder top dressing:Grind dried, rinsed eggshells into a fine powder; sprinkle a thin layer on the soil surface to boost calcium levels and improve soil aeration
Pruning
  • Remove spent flower stems at the base to redirect energy to foliage growth
  • Trim leggy stems in early spring to maintain a compact rosette shape
  • Pluck dead or yellowing leaves at the base to prevent pest infestations and improve airflow
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-confirmed toxic; contains bufadienolide cardiac glycosides that can cause severe gastrointestinal and cardiac issues

Humans: Contains low levels of calcium oxalate crystals; ingestion may cause mild oral irritation or nausea in large quantities

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental succulent for indoor tabletops, succulent arrangements, and outdoor rock gardens