Matthiola Centum Deep Blue produces sweet-scented, well-filled flower spikes with a deep violet/blue colour. The Matthiola Centum series delivers top performance and rich flowering from spring to midsummer. Plant the Centum series from winter to late spring. Centum is loved for its well-filled flower spikes, high stem quality and a range of brilliantly bright colours. No fuss or extra work. The Matthiola Centum series is easy to select for doubleness after a cold treatment, so you will start with an excellent series with 100% double flowers.