Corydalis lutea is one of the workhorses of the shady garden. In bloom from April through November, the delicate foliage and clusters of soft yellow flowers add a graceful touch to the garden. Selfseeds in a manageable way. One of my top ten perennials. This species of Corydalis (also called yellow fumitory or yellow corydalis) is a woodland perennial which typically forms a mound of ferny, medium green foliage to 15 inches tall and 18 inches wide and produces bright yellow, short-spurred flowers (3/4 inches long) in axillary racemes over a long May to September bloom period. Leaves are 2 or 3 pinnate with distinctive 3-lobed leaflets and resemble those of bleeding heart (Dicentra) to which it is related. Hardy in zones 5-9. Grows in shade or part-shade.
Corydalis lutea is one of the workhorses of the shady garden