Australian Silky Oak Toxic?

Updated 2026-03-06| 4 min read| 1,723 found this helpful

No confirmed animal poisoning cases from Grevillea robusta have been reported in peer-reviewed literature to date.

All parts of the plant are considered unsuitable for use as feed for companion animals or livestock.

Skin contact with the plant may cause allergic or irritant contact dermatitis in susceptible humans.

FAQ

Is Australian Silky Oak toxic to Humans?

Allergic or irritant contact dermatitis including redness, itching, and swelling at the exposure site (Low)

Is Australian Silky Oak toxic to Cats?

No confirmed toxicity symptoms reported in available scientific literature (Non-toxic)

Is Australian Silky Oak toxic to Dogs?

No confirmed toxicity symptoms reported in available scientific literature (Non-toxic)

Is Australian Silky Oak toxic to Horses?

No confirmed toxicity symptoms reported in available scientific literature (Non-toxic)

Not sure which plant? Snap a photo to ID in 1 secondGet App

Toxicity Details

Humans

Low

Allergic or irritant contact dermatitis including redness, itching, and swelling at the exposure site

Cats

Non-toxic

No confirmed toxicity symptoms reported in available scientific literature

Dogs

Non-toxic

No confirmed toxicity symptoms reported in available scientific literature

Horses

Non-toxic

No confirmed toxicity symptoms reported in available scientific literature

Toxicity Snapshot

Toxic PartsNo specific toxic parts linked to confirmed animal poisoning; all parts are unsuitable for animal feed, and full plant contact may cause human skin reactions

Exposure RouteSkin contact (for human dermatitis risk), ingestion (for unsuitable feed risk)

Toxic CompoundsNo specific toxic constituents have been formally identified for this species in published research

First Aid & Prevention

First 30 Minutes

• Wash exposed skin thoroughly with mild soap and cool water immediately after contact to reduce reaction risk
• Rinse the mouth with clean water if any part of the plant is ingested by humans or animals
• Monitor exposed individuals for 24 hours for any unusual symptoms including skin irritation or gastrointestinal distress

Contact Vet Immediately

• If your animal ingests large quantities of the plant and develops unusual behavior, vomiting, or diarrhea
• If your animal develops persistent skin redness, swelling, or irritation after contact with the plant

Prevention

• Avoid planting this species in areas accessible to grazing livestock or companion animals that may chew plant material
• Wear protective gloves and long sleeves when handling or pruning Grevillea robusta to reduce skin exposure
• Store all cut plant trimmings far from animal feed supplies to prevent accidental ingestion

Treatment & Prognosis

• Administer topical antihistamines or corticosteroids for skin reactions as directed by a medical provider or veterinarian
• Provide supportive care including fluid therapy and symptom management for any adverse ingestion reactions
• Monitor patients for 48 hours post-exposure to identify any delayed allergic reactions

Emergency? Open PlantFun for real-time AI guidanceGet App

Professional Toxicology

Scientific NameGrevillea robusta A.Cunn. ex R.Br.

AliasesSilk-oak、Silky-oak、Southern silky-oak、Australische Silbereiche (German)、Chêne soyeux d'Australie (French)

Toxicity Grade

HumansLow

CatsNon-toxic

DogsNon-toxic

HorsesNon-toxic

Target Organs

Skin

Mechanism of Action

• Unidentified plant compounds trigger allergic or irritant immune reactions on skin contact in susceptible humans

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Grazing livestock (cattle, sheep, goats): No confirmed poisoning cases are on record, but the plant is not considered suitable for use as a feed source due to limited safety data

Confusion Risk

The following plants look similar and may be confused:

Other Grevillea species Grevillea spp.

Most Grevillea species share very similar leaf and flower morphology with Grevillea robusta; some related species have confirmed higher toxicity risks than Australian silky oak

Use PlantFun to scan and avoid misidentificationGet App

Related Toxic Plants

Rosemary grevillea

Grevillea rosmarinifolia

Low toxicity, may cause contact dermatitis and mild gastrointestinal upset if ingested

Silky hakea

Hakea sericea

Low toxicity, sharp leaf tips may cause physical injury, and foliage may trigger mild contact reactions

New South Wales waratah

Telopea speciosissima

Low toxicity, ingestion of large quantities may cause mild gastrointestinal distress in animals and humans

Download PlantFun App

Identify, grow and care for plants effectively!

Instant Plant ID

Take a photo to quickly identify plants.

Smart Care Reminders

Generate watering and care schedules.

Toxicity & Disease Diagnosis

Identify toxic plants and pests with treatment advice.

Data Sources

1. CliniTox (Universität Zürich)

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.