Species · genus Sedum · Crassulaceae
Rocky Moss-rose Stonecrop
Sedum japonicum Siebold ex Miq.
Cultivars of S. japonicum
The named forms growers keep — each with its own page, each honest about how much we know.
No named cultivars catalogued under S. japonicum yet. When growers document a stable, named form, it earns its own page here.
Guide
The species-level account. Cultivar pages build on this and say where they differ.
Sedum japonicum is a low succulent subshrub from East Asia, storing water in its fleshy leaves and rotting if kept wet. Give it gritty, fast-draining mix and plenty of bright light, ideally some direct sun. Water deeply only once the soil has dried fully through; if the leaves stay plump it can wait longer.
Care recipe
The species record — the baseline every cultivar inherits unless it says otherwise.
Care notes are early — not yet verified
- Light
- ai:claude-opus-4-8
- Water
- ai:claude-opus-4-8 (range 10-21d)
- Humidity
- ai:claude-opus-4-8
- Soil
- ai:claude-fable-5
- Care
- ai:claude-fable-5
Direct sun
≈ every 21 days
Low — average room
5–27 °C
Gritty, fast-draining cactus and succulent mix
Stem cuttings or division of the spreading mat
Light dilute succulent feed once or twice in the growing season
Fast
Small yellow flowers in spring
Not yet documented
This is where toxicity lives — every cultivar of this species inherits it and none can override it.
Reference images
Every image credited. Licenses link to their deeds.
No reference gallery yet
A few clear photos — habit, a mature leaf, a flower if it blooms — would give this page its eyes.
Add imagesSources: ai:claude-opus-4-8 · ai:claude-opus-4-8 (range 10-21d) · ai:claude-fable-5
Kept true by its growers
Every fact here carries its source. Grow Rocky Moss-rose Stonecrop yourself? What you’ve observed — how it drinks, how it holds its color, a name that’s off — is exactly what keeps this page honest. Contributions are reviewed before anything changes.
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