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Plant guide

American holly

Ilex opaca

Known hazard

Do not put this plant in a catio or anywhere a cat can reach it. The planner reports it as a blocker.

Reported severitymild — our grouping of reported signs, not veterinary advice
Parts of concernberries, leaves
Habitshrub
Lightfull sun, part sun
Watermedium
Smallest containerabout 30 L (8 gal)
Outdoors year-roundUSDA zones 5–9
Safety reviewed2026-10-12

Sources

Toxic-plant lists are not exhaustive. Report a correction.

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