Cats
Generally safeConsulted references do not classify the plant as toxic for that pet type, while still allowing for mild GI upset if large amounts are chewed.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources
Pet safety reference
Hemlock Tree
Tsuga species
Hemlock trees are coniferous evergreens often used in landscaping. While they are not considered toxic, ingestion of large amounts of plant material may cause minor digestive discomfort due to the fibrous nature of the needles.
Eastern HemlockHemlockTsugaTsuga species
- Light
- Partial shade to full sun
- Habit
- Tree
- Care
- Low
Safety status
If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.
Cats — concern notes
Common signs
None expected, though large ingestions of fibrous needles may cause mild vomiting or diarrhea.
Escalation note
Generally considered non-toxic. If your cat consumes a significant amount and shows signs of distress, contact your veterinarian.
Safer alternatives
No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.
Source evidence
ASPCA Toxic Plant List
toxicology · 99% reliability
Hemlock (Tsuga species) is listed as non-toxic to cats and dogs.
NC State Extension Plant Toolbox
botanical · 94% reliability
Tsuga canadensis is a native evergreen conifer known for its ornamental value in landscapes.
Questions about Hemlock Tree
Are hemlock trees toxic to cats?
Hemlock trees (Tsuga species) are generally considered non-toxic to cats. They are not the same as poison hemlock (Conium maculatum), which is a completely different and highly dangerous plant.
What happens if my cat eats hemlock tree needles?
No toxic effects are expected, but the fibrous needles may cause mild vomiting or diarrhea if your cat eats a significant amount due to their indigestible texture.
What should I do if my cat ate a large amount of hemlock tree needles?
Monitor your cat for signs of GI upset such as vomiting or diarrhea. If symptoms appear or your cat seems distressed after a large ingestion, contact your veterinarian.
Can cats safely be around hemlock trees in the yard?
Hemlock trees (Tsuga species) are non-toxic to cats, so outdoor exposure is not a toxicity concern. That said, non-toxic does not mean harmless in large quantities — repeated nibbling on the fibrous needles can still cause stomach upset.
Same genus
More from the Tsuga genus
Canada Hemlock
Tsuga canadensis
Canada Hemlock is a popular evergreen conifer known for its graceful, feathery foliage and adaptability in landscape settings. It is considered non-toxic to pets, though its fibrous nature may cause minor digestive discomfort if consumed in large quantities.
Generally safe for cats & dogs.
Carolina Hemlock
Tsuga caroliniana
The Carolina Hemlock is a graceful, slow-growing evergreen conifer native to the Appalachian Mountains. It is widely considered safe for household pets, though its fibrous needles may cause minor digestive irritation if consumed in large quantities.
Generally safe for cats & dogs.
Same growing conditions
Plants for the same room
Bristly Greenbrier
Smilax hispida
Bristly Greenbrier is a woody, climbing vine native to North America, often found in thickets and woodlands. It is considered non-toxic to pets, though its fibrous nature may cause minor digestive discomfort if consumed in large quantities.
Generally safe for cats & dogs.
Jackson Brier
Smilax lanceolata
Jackson Brier is a woody, climbing vine known for its lance-shaped leaves and resilience. It is considered non-toxic to household pets, though its fibrous nature may cause mild digestive discomfort if consumed in large quantities.
Generally safe for cats & dogs.
Red Berried Greenbrier
Smilax walteria
Red Berried Greenbrier is a woody, climbing vine native to the southeastern United States, often recognized by its clusters of bright red berries and thorny stems. It is considered non-toxic to pets, though its fibrous nature may cause minor digestive discomfort if consumed in large quantities.
Generally safe for cats & dogs.
Sawbrier
Smilax glauca
Sawbrier is a woody, climbing vine native to North America, often recognized by its glaucous, blue-green foliage and occasional thorns. It is considered non-toxic to pets, though its fibrous nature may cause minor digestive discomfort if consumed in large quantities.
Generally safe for cats & dogs.