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.

The large flowers of Geranium 'Irish Blue' are totally blue with a soft tint of pink toward the centre and darker veins all along the petals.

Geranium pratense 'Cloud Nine' is a cranesbill with fully double, light blue flowers and dark green bushy foliage.

Geranium pratense 'Delft Blue' has unique white flowers with variable blue stripes and flecks. Each flower is different!

Geranium x magnificum 'Rosemoor' is a sterile cranesbill with large, single violet-blue flowers and textured foliage.

Geranium 'Azure Rush' is a sport of 'Rozanne' with lighter blue flowers and a more compact habit.

Geranium Azure Skies is a beautiful cranesbill with unusual blue to lavender-blue double flowers.

Geranium 'Blue Sunrise' has silver blue to lavender-blue flowers all summer long. New foliage is orange then yellow then light green.

Geranium 'Havana Blues' has yellow-green foliage topped for months with blue flowers.

Geranium 'Jolly Blue' has lavender-blue to true blue flowers from spring to fall and a vigorous spreading and cascading habit.

Geranium 'Philippe Vapelle' is a cranesbill that has bluish-purple flowers and cool, textured foliage.

Geranium 'Rise and Shine' has purple-blue cranesbill flowers with white centres from June until frost! One of the best of all hardy geraniums.

Geranium 'Rozanne' has purple-blue flowers from June until frost! One of the best of all hardy geraniums.

Geranium 'Sabani Blue' is an early-blooming hybrid forming mounds of deeply-cut green leaves topped with clusters of bluish violet flowers with attractive dark veins.