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Widow's-thrill

Kalanchoe

Also called Kalanchoes

Widow's-thrill
Photo: Cdpanic at English Wikipedia, CC BY-SA 3.0

Kalanchoe is a genus of about 125 mostly succulent tropical plants, mainly from Madagascar and tropical Africa, grown as houseplants and in succulent gardens. Give them bright light, let the soil dry out between waterings, and they will reward you with clusters of colourful flowers.

Family
Crassulaceae (Stonecrop family)
Grows as
Succulent
Light
Bright indirect, Full sun
Water
Water thoroughly, then let the soil dry out almost completely before watering again; reduce water in winter.
Soil
Fast-draining succulent or cactus mix.
Temperature
18–27 °C; protect below 10 °C
How easy
Easy
Safety
Toxic: Leaves and other parts contain bufadienolide-type cardiac glycosides, which can cause vomiting, diarrhoea, and irregular heartbeat if eaten.. Toxic to cats and dogs (ASPCA).

About

Kalanchoe ( KAL-əng-KOH-ee), (also called "kalanchöe" or "kalanchoë"), is a genus of about 125 species of tropical, succulent plants in the stonecrop family Crassulaceae, mainly native to Madagascar and tropical Africa. A Kalanchoe species was one of the first plants to be sent into space, sent on a resupply to the Soviet Salyut 6 space station in 1979.

How to grow it

These plants are cultivated as ornamental houseplants and rock or succulent garden plants. They are popular because of their ease of propagation, low water requirements, and wide variety of flower colors typically borne in clusters well above the leaves. The section Bryophyllum—formerly an independent genus—contains species such as the "air-plant" Kalanchoe pinnata. In these plants, new individuals develop vegetatively as plantlets, also known as bulbils or gemmae, at indentations in leaf margins. These young plants eventually drop off and take root. No males have been found of one species of this genus which does flower and produce seeds, and it is commonly called the mother of thousands: Kalanchoe daigremontiana is thus an example of asexual reproduction.

The cultivars 'Tessa' and 'Wendy' have gained the Royal Horticultural Society's Award of Garden Merit.

Where it grows

The genus is predominantly native to the Old World. Only one species originates from the Americas. Fifty-six are from southern and eastern Africa and 60 species on the island of Madagascar. It is also found in south-eastern Asia and China.

Other Kalanchoe plants

Elephant's ear Kalanchoe · Madagascar widow's-thrill · Devil's backbone · Chandelier plant · Palm beachbells · Narrow Leaved Kalanchoë · Milky Widow's Thrill · Kalanchoe longiflora · Kalanchoe luciae · Kalanchoe manginii · Penwiper · Kalanchoe marnieriana

Text excerpted from the Wikipedia article Kalanchoe by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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