Mentha x aquatica 'Citrata' - Hardy, herbaceous perennial. 30-40cms height. Full sun to part shade, but prefers some shade. Delicious lemon scented leaves. Culinary herb. A tea can be made from the fresh or dried leaves. Purple aromatic flowers from summer to autumn. Prefers a moist soil. Frost hardy. Flowers attractive to bees and pollinating insects. Good companion plant for cabbages and tomatoes.