Hardly resembling a gentian, but extremely lovely nonetheless, is this compact plant bearing many spires holding largish pale blue flowers. The glossy green basal foliage is an added bonus! ... Learn More

Appropriately named, this rare plant is from Japan. With slowly lengthening royal blue spires, up to 30cm long, and 60-90cm stems lightly clad with pointed sawtooth leaves, it flowers until late September. ... Learn More

Striking blue-violet flowers on long branching stems emerge from bushy clumps of vivid green foliage. Growing well in full sun and freely draining soil, it is perfect for cutting, and the bees and butterflies will love this plant as much as you. It makes a great summer display that will benefit from staking to ensure the beautiful blooms remain upright and on display, and is easily propagated by division at either end of the season. ... Learn More

This dwarf mutant forms dense mats of very deeply divided, almost fern-like leaves, and short dumpy spikes of light blue flowers. It is perfect for growing in a trough or small alpine garden rather than a large rockery. ... Learn More

Numerous long, graceful, pointed spikes of brightest blue flowers open from June until late summer. This popular, long-flowering herbaceous border plant also produces excellent cut flowers. Very long-lived, and bone-hardy, it will gently self-seed to places where little else will grow! ... Learn More

This majestic perennial boasts striking slender spires of delicate, pure snowy-white flowers above dense green foliage. Flowering from June until August, this is an eye-catching addition to the cottage garden or can be dotted through a large herbaceous border to good effect, and is happy in full sun or partial shade. Especially impressive in a dark corner! ... Learn More