Centranthus ruber ‘Albus’ or White Valerian is a clump-forming, evergreen perennial, but sometimes grown as biennials. Native to the Mediterranean Region it is a member of the Valerianaceae family of plants. It grows to about 60cm or 2ft. It flowers in spring and summer. It flowers in clusters of small white flowers that are lightly fragrant. It looks beautiful in borders and is rather showy. It is also called Spanish valerian ‘Albus’, Jupiter’s Beard, Kiss-me-quick, Valeriana ‘Albus’ Betsy, German Lilac, and Centrathus alba. There is also a Red variety very similar in look but with red flowers.
Centranthus ruber ‘Albus’ seems to be disease and pest-free. Plant in full sun or slightly shaded in a moist but well-drained soil. It actually does very well in poorer soil but does not do well in hot humid climates as it is drought tolerant. It is self-seeding so be careful where you plant it unless you would like it to naturalize. You can maintain by cutting dead flowers both for further blooms and to stop seeds being generated. You can propagate by seeds.