According to the search results, lavender is edible, but not all types of lavender are safe to consume. Culinary lavender, which is grown specifically for human consumption, is safe to eat and is used in teas, baking, and other culinary dishes. However, lavender oil should not be ingested in any form, as it can be toxic. Its important to look for the word "culinary" on the lavender that you use for culinary purposes, as lavender for body care or fragrance could have some pesticides or added ingredients that arent safe to eat. Lavender is commonly consumed in foods and is possibly safe when taken as medicine. Side effects might include constipation, diarrhea, and headache. When applied to the skin, lavender is usually well-tolerated, but can sometimes cause skin irritation. When inhaled, lavender essential oil is possibly safe and has been used safely as aromatherapy for up to 12 weeks.