Christmas Cactus

Schlumbergera spp. · Succulent

A forest cactus from humid mountain woods, not the desert. It likes more water and less sun than most cacti, and flowers in winter after a spell of long nights and cool temperatures in autumn.

Care at a glance

Light

Bright, indirect light; no harsh midday sun

Water

When the top 1 in is dry; less after flowering

Soil

Loose mix: potting soil with bark and perlite

Temperature

60–70 °F; 50–55 °F in autumn to set buds

Spacing

Snug pot; it likes to be slightly root-bound

Container

Pot with drainage holes

Bloom

Late autumn to winter

Lifespan

Perennial, decades

When?

From early autumn give 12–14 hours of darkness each night and cooler temperatures for about six weeks to trigger buds (estimated). Repot just after flowering.

Step by step

1. Plant in a small pot with a loose, fast-draining mix.
2. Keep in bright, indirect light; an east window is ideal.
3. Water when the top inch is dry; never let it sit in water.
4. Feed monthly from spring to late summer.
5. In autumn, give long nights and a cool room to set buds.
6. Once buds form, don't move the plant or change its routine.
7. After flowering, rest it with lighter watering for a month.

Common problems

Pets

Listed as non-toxic to cats and dogs; eating a lot of it may cause mild stomach upset. If in doubt, ask your vet.

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