Stunning, fragrant pinkish-purple flowers bloom in spring and then sporadically through fall. The ferny foliage can reach as high as 3 feet and looks great around hostas and other shade garden plants. 

In spring, this biennial produces small yellow flowers, which are carried tightly over finely divided, sea green leaves. It self-sows freely.

This plant's tapering, finely dissected leaves make it look like a fern relative. The bronzy tints of the emerging foliage add to this plant's beauty. It bears buttery yellow blossoms from spring to summer.

This variety has fragrant, deep blue, cornucopia-shaped flowers carried tightly on red stems above 6-inch tall, blue-green foliage. It is considered one of the best blue forms for color and performance.

This fragrant, blue-flowered species is more vigorous and heat tolerant than the blue cultivars. It blooms from late spring to early summer, and its foliage persists throughout the season with adequate moisture.

From late spring to summer, this species produces clusters of brilliant blue flowers over ferny foliage. It is the parent of many of the rapidly expanding selection of choice blue cultivars.

The first of the coveted blue corydalises to be introduced, it produces fragrant clusters of long-spurred, azure flowers on a compact plant. 

This is one of the coveted blue corydalises. It produces whorled clusters of sky-blue flowers on 18-inch tall plants. 

This choice corydalis produces fragrant clusters of periwinkle-blue flowers and ferny foliage infused with purple hues. It is similar to 'Blue Panda,' yet is slower to spread and blooms more reliably during the summer.

This species produces copious purplish-blue flowers in spring and fall. It has light green ferny leaves with a mid-rib of silver.

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This species has bluntly spurred golden yellow flowers from late spring to early fall. Its pale green, glaucous leaves form compact, ferny mounds.

From late spring and throughout the summer, creamy flowers cover a delicate mound of filigreed gray-green foliage.

This species has tiers of lacy foliage that form broad clumps, 3 feet high by 3 feet wide. Its hot pink flowers bloom from May to July.