Colocasia esculenta is a tuberous, evergreen perennial that has long-stalked, arrow to heart-shaped leaves reaching up to 1m in height! It is often found growing along river banks and has a dormant period during the dry season in places like South Africa. You may identify species from this genus by their large leaves which point downwards. In comparison, the related genus Alocasia features plants which have their leaves pointing upwards. Colocasia species may be used effectively as marginal plantings in ponds and lakes. They grow best in full sunlight and thrive in wet soil.