Verbena officinalis, the common vervain or common verbena, is a perennial herb native to Europe. It grows up to a metre/yard high, with an upright habitus. The lobed leaves are toothed, the delicate spikes hold mauve flowers.
A sweet and delicate musk-like odour is produced by the seed coat. The essential oil obtained from the plant is used as a food flavouring and in perfumery...
It grows-up to a height of 4-6 feet depending on the dept of the swamp or creek it is growing in, maximum spread of 9 inches. It can be grown in a pot. Widely cultivated for its large pink flowers.