Hylotelephium cauticola

A low, trailing stonecrop from cliffs in southern Hokkaido, Japan, with blue-grey rounded leaves and pink flowers in early autumn. It is very cold-hardy and dies back to resting buds in winter, so it is best grown outdoors in full sun in a sharply drained rock garden or trough.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Grows on rock faces and cliffs in the Hidaka area of southern Hokkaido, rooting into crevices where water drains away instantly despite heavy rainfall and frequent sea fog.

Records near sea level up to the low mountains; the main climate site is at about 470 m.

Japan

🔒 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 3.0 licence, unmodified.