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.
Wow! Here's a unique chance to grow this new hardy species of Banana. This tree is an absolute novelty that shows great promise as an ornamental for the temperate as well as the cooler tropical garden.