Species · genus Opuntia · Cactaceae
Opuntia karwinskiana
Opuntia karwinskiana Salm-Dyck
Cultivars of O. karwinskiana
The named forms growers keep — each with its own page, each honest about how much we know.
No named cultivars catalogued under O. karwinskiana 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.
A Mexican prickly pear (Opuntia) in the cactus family, adapted to hot, arid conditions and bright sun. It stores water in its pads, so water deeply but infrequently, only once the soil has dried out completely to the bottom of the pot. Give it the brightest direct light you can and a fast-draining, gritty mix; standing moisture causes rot.
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 14-28d)
- Humidity
- ai:claude-opus-4-8
- Soil
- ai:claude-fable-5
- Care
- ai:claude-fable-5
Direct sun
≈ every 28 days
Low — average room
10–30 °C
Gritty, fast-draining cactus mix with coarse sand
Root a callused pad in dry mix
Dilute low-nitrogen cactus feed once or twice in the growing season
Moderate
Rarely flowers indoors
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 14-28d) · ai:claude-fable-5
Kept true by its growers
Every fact here carries its source. Grow Opuntia karwinskiana 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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