Lemon Verbena, used to be called Lippia citriodora, which I confess I still call it. The scent as one brushes past its foliage is superbly lemon scented, pale purple flowers in July/August. Best grown against a warm wall.
Available in economy and premium selection
Economy - rooted into its pot but a further season before moving up a pot size.
Premium - more growth in its pot. More mature than Economy