Plant Search » Gentianaceae (The Gentian Family)
Gentiana cruciata 'Blue Cross' is a cultivar bred to be easier to grow and to have a bushier, more compact growth habit.
Gentiana makinoi 'Royal Blue' has tubular, true royal blue flowers on tall stems to about three and a half feet high.
Gentiana scabra 'Royal Stripes' is a compact gentian with blue and white striped flowers and bright green freckles.
True, royal blue flowers on tall stems in summer.