Curio repens

Blue chalksticks: a mat-forming succulent with silvery-blue finger-like leaves from rocky sandstone slopes in the Western Cape. It wants full sun, sharp drainage and a cool, wetter winter with a dry summer, and is easy from cuttings.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

In and among rocky crevices and on exposed ledges of dry, rubble-strewn sandstone slopes where water drains away fast.

Recorded elevations 20–250 m; some climate sites lie at 750–890 m.

South Africa (Western Cape)South Africa (Eastern Cape)

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 4.0 licence, unmodified.