In early spring, terminal racemes of large, fragrant, white or purple flowers, open above attractive clumps of ternately divided leaves. Larger than Corydalis solida, and appearing from hollow, unusually-shaped tubers, this gem will naturalise in the garden when happy, producing different coloured seedlings, whilst preferring a shady, well drained border with extra humus. Few seeds collected. ... Learn More

Bronze tinged ferny foliage makes a perfect backdrop for the endless sprays of golden yellow flowers. Will naturalise in a suitable position. ... Learn More

This new impressive poppy relative is a lovely clump-forming plant with strong much-dividing stems bearing masses of delicate ferny leaves and carrying on the end of each branch a large multiple flower head of yellow, brown and white flowers. This is the biggest, fastest-growing and most amazing corydalis we have ever encountered. ... Learn More

Spikes of bright yellow flowers above a delicate filigree of tiny green fern-like leaves. Exceptional performance in walls or dry locations, naturalising well and producing a long season of colour from early spring to late summer. ... Learn More

This extremely rare, beautiful and valuable new discovery from the Arctic wastes of Eastern Russia bears a long succession of large, chocolate-tipped yellow flowers, which are produced throughout the spring and summer above a solid, soft foil of delicate ferny foliage. In a well-prepared bed it can reach nearly a metre in height and is exceptional on a north bank here. ... Learn More

This diminutive treasure is packed with racemes of large, white or creamy-yellow tubular flowers above finely-divided glaoucous foliage, very early in the year. It will thrive virtually everywhere, making a superb show every spring, along with a gentle increase underground. It may also self sow a little but never to cause a problem, and soon after flowering this amazing plant vanishes underground into hardy tubers for another 9 months ... Learn More

Clumps of blue green, dissected, ferny foliage are the perfect backdrop for the clustered primrose yellow, purple-brown tipped flowers that open from huge clusters of buds in April and May. A focal point in the spring garden, this "Lord of the genus Corydalis" never fails to attract attention and questions from the visitors to our gardens here. ... Learn More

The Eastern Himalayas is the home of this vigorous architectural plant, which may self-seed when happy. From a dense filigree of fern-like grey-green foliage sprout thick, crunchy, dividing brittle stems carrying masses of red-tipped ivory flowers. ... Learn More

A brand new hybrid discovered here as a single seedling from two quite distinctive and different parents. Your seedlings will vary, but all will have very early sprays of creamy-yellow flowers erupting from bronzed foliage later turning to shades of pink or purple. ... Learn More

A distinctive, rapid growing plant producing large sprays of tubular pink flowers with yellow tips. Will flower the first year if sown early and also self-seed gently where it is happy. ... Learn More

The lovely albino form of this plant. Sown early can make an impressive mass smothered with yellow-tipped snow-white flowers. ... Learn More

In spring, tight tufts of grey-green ferny foliage lie beneath dense spikes of purple flowers. This beautiful plant from northern Europe does well in a shady position on the rockery where it will grow in size each year. Very few seeds collected. ... Learn More

This rare and extremely beautiful, clump-forming herbaceous alpine has a hardy tuberous root, and grey-green, divided, fern-like foliage. Heavy sprays of tubular, deep brick-red flowers are borne in upright racemes in March and April. It does best in very well-drained, moderately fertile soil in an open sunny position or light dappled shade. ... Learn More

This hardy corydalis bears strong spikes of tubular and pale yellow flowers which are arranged in neat racemes. The most unusual feature however, is the maidenhair-like foliage which is a striking, metallic, glaucous grey colour. ... Learn More

This lovely plant displays compact sprays of rich butter-yellow flowers held close to the rosette of finely-divided, glaucous leaves. Although it is an alpine plant, and can easily withstand minus ten degrees C, it grows best in a well drained soil, or a scree mixture as it does not readily tolerate winter wet, and therefore is best suited to a protected scree outdoors, or will perform even better in a raised bed in an Alpine House. ... Learn More