Prefers semi-shade and lots of water. Great Cilantro flavor - it can be easily grown year round inside on a windowsill. Leaves are a common ingredient in Vietnamese, Cambodian and Thai soups, stews, salads and meat dishes. Kesom oil is distilled from the leaves and used in the flavor and fragrance industries. Looks just like our native smartweeds. After 12 years ours finally flowered (small white). Also known as Persicaria odorata.