Christmas Kalanchoe

How to care for Christmas Kalanchoe

Light

Calandiva performs best in a bright position with indirect light, such as a south- or east-facing windowsill where it receives several hours of bright light without prolonged harsh midday sun. Some gentle morning sun is beneficial and can intensify flower colour, but intense afternoon sun in summer may scorch the thick, glossy leaves. Low light will cause the plant to become leggy and reduce or prevent flowering.

Watering

As a succulent, Calandiva stores water in its leaves and stems, making it highly susceptible to root rot if overwatered. Allow the top half of the compost to dry out before watering again, then water thoroughly and allow excess to drain freely from the pot. Reduce watering during winter and the post-flowering rest period. Always water at the base rather than over the foliage, and never allow the pot to sit in standing water.

Soil and potting

A free-draining compost is essential. A ready-made cactus and succulent compost works well, or a standard peat-free houseplant compost can be amended with approximately 30-50% perlite or horticultural grit to improve drainage. Good aeration around the roots helps prevent fungal disease and encourages healthy growth.

Feeding

Feed monthly during spring and summer with a balanced liquid fertiliser diluted to half strength, or use a fertiliser formulated for succulents. A low-nitrogen, higher-potassium feed can be used when flower buds are forming to support blooming. Do not feed during autumn and winter, or immediately after repotting, as this can stress the plant.

Humidity and temperature

Calandiva is well adapted to the relatively dry air found in most centrally heated homes and does not require misting or additional humidity. It prefers temperatures between 15-25°C and should be kept away from cold draughts, frost, and sudden temperature fluctuations. Temperatures below 10°C can cause chilling damage, and the plant will not tolerate frost. Avoid positioning near radiators or heating vents, which cause excessive drying.

Repotting

Repot every one to two years in spring, or when roots visibly emerge from the drainage holes. Move up only one pot size at a time, as excessively large pots retain moisture and increase the risk of root rot. Use fresh, free-draining compost and water sparingly for the first week or two after repotting to allow any damaged roots to recover.

Pruning

Deadhead spent flower clusters promptly by cutting the stem back to the next set of leaves to keep the plant tidy. After the main flowering period, cut leggy stems back by up to one third to encourage a compact, bushy habit. Removing faded growth also helps redirect the plant's energy towards new development. Calandiva can become woody with age; propagation from stem cuttings is recommended when the plant loses vigour.

Is Christmas Kalanchoe toxic?

Common problems

How to propagate

Stem cuttings

Take a healthy, non-flowering stem cutting of 5-8 cm in length, remove the lower leaves, and allow the cut end to callous over for one to two days. Insert into barely moist, free-draining compost and place in a warm, bright position, avoiding direct sun; roots typically form within two to four weeks.

Leaf cuttings

Detach a healthy, mature leaf cleanly at the base and allow it to dry for a day. Lay it on the surface of barely moist cactus compost or press the cut end lightly into the mix. Tiny plantlets may develop at the base, though this method is slower and less reliable than stem cuttings for Calandiva.

Where Christmas Kalanchoe comes from

Native to Madagascar.

Story and origins

The genus name Kalanchoe is derived from a Chinese or Cantonese name for one of the plants in the group, thought to be 'Kalan Chauhuy', meaning 'that which falls and grows', a reference to the way some Kalanchoe species propagate from fallen leaves or plantlets. The cultivar name Calandiva is a trade name coined by the breeder and is not a Latin botanical epithet; it does not carry a classical meaning but was created to be distinctive and commercially memorable. The species epithet blossfeldiana, applied to the parent species, honours Robert Blossfeld, a German nurseryman and plant collector who introduced the species to European horticulture in the 1930s.

Kalanchoe blossfeldiana was first collected in Madagascar and introduced to European horticulture in 1932 by Robert Blossfeld, who sent specimens to Germany where it quickly gained popularity as a winter-flowering pot plant. The plant's ability to bloom in the depths of winter made it commercially valuable, and breeding programmes across Europe, particularly in the Netherlands and Denmark, refined the range of flower colours and plant habits over subsequent decades. The Calandiva cultivar group, characterised by its fully double flowers, was introduced in the early 2000s and represented a significant development in the commercial Kalanchoe market, broadening consumer appeal by offering blooms that more closely resembled traditional cut flowers such as roses. Today Calandiva is one of the best-selling flowering houseplants in Europe, particularly during the Christmas and New Year retail period.

Varieties to know

Calandiva 'Kerinci'

A widely available cultivar with deep red double flowers, one of the original Calandiva introductions.

Calandiva 'Simone'

Bears fully double pale pink flowers and is noted for its compact, neat habit.

Calandiva 'Faro'

Produces bright orange double blooms and is valued for its strong, upright flower stems.

Calandiva 'White Lady'

A cultivar with pure white double flowers, popular as a gift plant and for bridal displays.

Calandiva 'Purple'

Features rich purple to violet double flowers, a colour variant less commonly seen in the standard Kalanchoe blossfeldiana range.

Fun facts

• Calandiva was developed by the Danish company Heimer Skov through selective breeding of Kalanchoe blossfeldiana and was introduced commercially in the early 2000s, with the double-flowered form first registered as a distinct cultivar group around 2002.
• The double flowers of Calandiva are sterile and produce no viable pollen, meaning the plant cannot set seed and must be propagated vegetatively.
• Kalanchoe blossfeldiana, the parent species, is a short-day plant, meaning flowering is triggered by extended periods of darkness; commercial growers manipulate artificial light to bring plants into flower for specific retail seasons.
• A single Calandiva plant can remain in flower for eight to twelve weeks under good conditions, making it one of the longer-blooming succulent houseplants available.
• Despite being marketed as a Christmas plant in temperate countries, Calandiva originates from a tropical climate and has no natural association with cold or winter conditions.

Christmas Kalanchoe FAQ