Gentiana cruciata 'Blue Cross' is a cultivar bred to be easier to grow and to have a bushier, more compact growth habit.

Gentiana makinoi 'Blue Star' has upright, tubular-shaped violet-blue flowers with yellow stamens and glossy green foliage.

Gentiana makinoi 'Royal Blue' has tubular, true royal blue flowers on tall stems to about three and a half feet high.

Gentiana septemfida "Bella Alpinella" is a low-growing Summer Gentian with masses of sapphire blue flowers from midsummer to early fall

Gentiana 'True Blue' produces true, royal blue flowers on tall stems in summer.