Yes. Oregano (the leafy herb) is allowed during Paryushan. It is not a root vegetable and it is used as a spice/herb in vegetarian cooking, which aligns with Jain vows of non-violence and a vegetarian diet.

Notes:

• The main Jain restrictions during Paryushan concern avoiding harm, keeping vows strictly, and avoiding certain foods like onions, garlic, or other root vegetables in many households. Oregano does not fall into those restricted categories.
• If you follow stricter practices in Digambar or Shwetambar communities, oregano is still generally acceptable as a seasoning, since it is a leaf/green herb and not a root or animal product.
• Ensure all ingredients are vegan/vegetarian and free from any non-vegetarian additives.