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1.Kalanchoe Blossfeldiana — Overview
Kalanchoe blossfeldiana, widely known as Kalanchoe or Flaming Katy, is a globally popular succulent houseplant. People celebrate it for its profusion of vibrant, long-lasting flowers. This perennial evergreen succulent is native to the cool, elevated regions of Madagascar. There it thrives in well-drained, sandy-loamy soils.
It often grows nestled in rock crevices or among sparse vegetation in mountainous areas with distinct wet and dry seasons. The plant typically forms a compact, bushy mound. It reaches heights of 15-45 cm (6-18 inches) with an equivalent spread. Its distinctive foliage consists of thick, succulent, dark green leaves.
These leaves are ovate to obovate with scalloped or crenate margins. They often show a reddish tinge along the edges when exposed to ample sunlight. This decorative foliage provides year-round visual appeal, even outside the blooming period.
What truly sets Kalanchoe blossfeldiana apart are its prolific clusters of small, four-petaled florets. These florets grow in dense cymes above the foliage on sturdy stems. The original wild forms typically showed red flowers.
Since its introduction to Europe in 1932 by German hybridizer Robert Blossfeld, extensive horticultural hybridization has yielded a spectacular spectrum of colors. These include various shades of red, orange, yellow, pink, white, and even striking bi-colored varieties. The brilliant blooms can persist for several weeks.
They often grace indoor spaces from late autumn through spring, which makes the plant a favored choice for adding color during colder months. The plant is photoperiodic, so it needs short days and long nights to initiate flowering. Florists use this trait strategically to force blooms for holiday seasons, which cements its status as a cherished ornamental.
Trusted Scientific References
Authoritative external sources for Kalanchoe blossfeldiana:
1.1.Kalanchoe Blossfeldiana — Key Features
- Vibrant, Long — Lasting Flowers — Produces dense clusters of colorful florets that bloom for several weeks.
- Succulent Foliage — Features thick, waxy, dark green leaves with scalloped margins.
- Photoperiodic Blooming — Flowers are triggered by short-day/long-night conditions, making it a popular winter bloomer.
- Easy Indoor Care — Relatively low-maintenance as a houseplant, requiring bright light and infrequent watering.
- Native to Madagascar — Originates from the cool, elevated regions of this island nation.
- Crassulaceae Family — A member of the stonecrop family, known for succulent plants.
- Traditional Topical Uses — Historically applied externally for wound healing and inflammation.
- Contains Cardiac Glycosides — Presence of bufadienolides necessitates strict caution against internal consumption.
- Wide Cultivar Range — Available in a spectrum of flower colors due to extensive hybridization.
- Compact Growth Habit — Forms a bushy, mounding plant suitable for indoor pots and containers.
1.2.Kalanchoe Blossfeldiana — Quick Summary
- Kalanchoe blossfeldiana, or Flaming Katy, is a popular ornamental succulent known for vibrant, long-lasting flowers.
- Native to Madagascar, it belongs to the Crassulaceae family and thrives in cool, elevated, well-drained environments.
- Traditionally used topically for anti-inflammatory, wound-healing, and antiseptic properties in some folk medicine systems.
- Contains bufadienolides, potent cardiac glycosides, making it toxic if ingested.
- Requires abundant sunlight, cool temperatures, and specific light cycles to bloom profusely.
- Primarily cultivated as a houseplant, offering aesthetic value with critical safety considerations for medicinal use.
2.Kalanchoe Blossfeldiana — Scientific Identity
3.Kalanchoe Blossfeldiana — Categories & Tags
4.Kalanchoe Blossfeldiana — Appearance & Identification
5.Kalanchoe Blossfeldiana — Water Requirements
- Light — Provide abundant sunlight, ideally at least four hours of direct sun daily; a south-facing window is optimal, or filtered shade if moved outdoors in summer.
- Watering — Water thoroughly when the top few inches of soil feel dry to the touch, always erring on the side of dryness; ensure to empty the run-off dish after 15 minutes.
- Temperature — Kalanchoe blossfeldiana thrives in cool conditions, preferring night temperatures between 50-60°F (10-15°C) and day temperatures of 65-70°F (18-21°C) for extended blooming.
- Feeding — Fertilize with a balanced houseplant fertilizer twice monthly from late spring to early winter, then cease feeding from March through May.
- Repotting — Repot in the spring after flowering into a slightly larger container, using a rich, well-drained, porous mix comprising houseplant potting soil, crushed stones, coarse builder's sand, and organic matter.
- Encouraging Flowers — To stimulate re-blooming, provide 12-14 hours of uninterrupted darkness each night for four weeks, typically starting in early September, to mimic short-day conditions.
- Propagation — Easily propagated from 2-3 inch stem tip cuttings taken in spring or summer; allow cuttings to harden off for about a week before applying rooting hormone and planting in a moist, light soil mix.
- Pruning — After flowering, cut back spent stems and lightly prune to reshape the plant, which encourages branching and more flower-bearing tips.
Reviewed by the Flora Medical Global Botanical Review Panel
Multi-disciplinary editorial group · Botany · Ethnobotany · Herbal-medicine literature
Who reviewed this: This page was checked by the Flora Medical Global Botanical Review Panel — an in-house editorial group of botany graduates, ethnobotany researchers, and horticulture practitioners who collectively maintain our 7,000+ plant encyclopedia. Meet the team.
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1. Taxonomic verification
Scientific names and synonyms cross-checked against Kew POWO, World Flora Online, and The Plant List.
2. Phytochemical & medicinal cross-reference
Active compounds, traditional uses, and reported activities are cross-referenced with PubMed, USDA Dr. Duke's database, and peer-reviewed ethnobotanical literature.
3. Conservation & distribution check
Distribution, ecology, and conservation status confirmed against GBIF occurrence records and the IUCN Red List.
4. Editorial & safety review
Every entry passes an editorial pass for clarity, originality, and safety notices (toxicity, contraindications, dosage caveats) before publication.
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Editorial Note: This page is for educational and plant care purposes only.
Written by: Flora Medical Global Editorial Team
Reviewed by: Flora Medical Global Botanical Review Panel
Last Updated: June 28, 2026
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