Corydalis caseana, commonly known as Case’s Corydalis, is a perennial herb that thrives in the moist, shady woodlands and riparian zones of the western United States, particularly in the Pacific Northwest and Northern Rocky Mountains. It typically grows to about 2 feet in height and produces clusters of showy pink to purple flowers in the spring, which can add a delicate splash of color to shady garden areas. The foliage is fern-like, adding a fine texture to the plant’s appearance.

Case’s Corydalis is valued for its ability to flourish in cool, moist environments, making it an excellent choice for woodland gardens, shaded borders, or naturalized areas near water features. It is also suitable for planting along streams or in mountainous regions where conditions mimic its native habitat. Gardeners should provide it with consistently moist soil and protection from hot afternoon sun. While it is not drought-tolerant, it can be relatively low maintenance if its moisture requirements are met. It is not commonly afflicted by diseases or pests, but its foliage may go dormant in summer if soil dries out.CC BY-SA 4.0