Oregano
Origanum vulgare
Also known as: Common Oregano, Origanum vulgare, Wild Marjoram
Lamiaceae
If your pet has eaten this plant, call ASPCA Poison Control: (888) 426-4435 — available 24/7.
Last reviewed: June 2026 · Source: ASPCA Animal Poison Control
Fragrant Mediterranean herb essential in Italian and Greek cooking. Thrives on neglect with bright light.
Toxicity
Source: ASPCA Animal Poison Control Center. Always consult a veterinarian if your pet ingests any plant.
Care Guide
Pot Size
Frequently Asked Questions
Is Oregano toxic to cats?↓
Yes, Oregano (Origanum vulgare) is toxic to cats. If your cat ingests any part of this plant, contact your veterinarian or the ASPCA Animal Poison Control Center (888-426-4435) immediately.
Is Oregano toxic to dogs?↓
Yes, Oregano is toxic to dogs. Symptoms may include vomiting, drooling, or lethargy. Contact your vet immediately if your dog chews or eats this plant.
How often should I water Oregano?↓
Water Oregano every 7–10 days. Allow the soil to dry out completely between waterings — this plant is drought-tolerant and prone to root rot if overwatered.
How much light does Oregano need?↓
Oregano thrives in direct sunlight, ideally a south- or west-facing window. It is forgiving and adapts to a range of light conditions.
What size pot does Oregano need?↓
Use a pot between 4″ and 8″ in diameter. When repotting, choose a pot only 1–2″ larger than the current one — too much space retains excess moisture and can lead to root rot.