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Christmastree plant

Christmastree plant

Kalanchoe laciniata · Crassulaceae

🌿 Common garden plant

📷 This photo has been taken by Matthieu Sontag (User:Mirgolth) and released under the licenses stated below. You are free to use it for any purpose as long as … · CC BY-SA 3.0

ExposureFull sun
WateringLittle water
Hardiness~-5 °C
Mature size~40 cm
CareEasy
Bloomingfrom July to September
⚠️ Toxic to pets

⚠️ Feuilles contiennent glycosides cardiaques : toxiques par ingestion pour chiens/chats (troubles cardiaques) et enfants (irritation buccale).

The gardener's calendar

The right move for September

Christmastree plant is in full bloom: enjoy it, watch watering in hot weather and let spent flowers feed pollinators before pruning.

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ID card

Foliage
Evergreen, succulent and lobed
Flowering
July to September, yellow bell-shaped flowers
Adult size
40 cm in height
Growth
Moderate
Hardiness
Frost-tender plant, grow indoors or in Mediterranean regions
Origin
Madagascar
Soil type
Well-draining, light and poor soil

✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability medium.

Expert tips

✓ Taxonomy verified

The key tip

Water very sparingly: wait for the substrate to be completely dry before watering again. The trap is winter overwatering (it rots before freezing).

The common mistake

Keeping the soil moist "to be safe" — it dies from root suffocation long before drought strikes.

The pro's trick

Mix coarse sand or pumice into the potting mix to improve drainage.

Seasonal watch

September-November: cut back watering significantly before the first frost, otherwise it freezes in waterlogged soil.

Care

Watering

Water moderately during the growing season (spring-summer), letting the substrate dry out well between waterings. In autumn and winter, drastically reduce watering or suspend it altogether. Kalanchoes store water in their leaves and fear excess moisture and root rot.

Light exposure

Place this succulent in full sun, at least 6 hours per day, to ensure attractive growth and abundant flowering. It tolerates a few hours of indirect light, but lacking brightness, it will become leggy and its leaves will lose their colour.

Substrate and drainage

Use a very well-draining mix made up of cactus compost, coarse sand and perlite in equal parts. The pot must have a drainage hole. Kalanchoes do not tolerate heavy or constantly moist soils.

Pruning and pinching

Pinch young stems to encourage compact, bushy branching. After flowering, you can remove faded stems to maintain a neat shape. Light pruning in late winter prepares the plant to regrow vigorously in spring.

Feeding

Apply very diluted fertilizer (one third of recommended dose) or succulent-specific fertilizer, one to two times in spring and early summer. Avoid excess nitrogen, which promotes foliage at the expense of flowering. No feeding in autumn-winter.

Pests and diseases

Watch for mealybugs and aphids, especially indoors. The main risk remains root rot from excess water. Ensure good air circulation and respect dry periods. If pests attack, isolate the plant and treat with an appropriate insecticide.

Did you know?

The Kalanchoe genus originates from Madagascar and the rest of Africa, where these fleshy plants have developed remarkable survival strategies in arid environments. Some species in the genus produce 'live plantlets' (bryophylls) along their leaves, which detach spontaneously to colonize the surrounding soil—a spectacular vegetative reproduction that Malagasy and other African peoples have used for generations for rapid propagation.

Where to buy it

Plant in spring, once all risk of frost has gone. Pick a plant with healthy foliage and roots that are not exposed. Best time: from April to June.

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Tips generated and checked by Viridia — adapt them to your local climate.