Rock harlequin (Capnoides sempervirens, formerly Corydalis sempervirens) is a lovely wildflower that’s right at home in the garden, with ferny blue foliage and sprays of pink-and-yellow flowers from late spring through summer on upright stems that usually reach 12 to 18 inches tall (but possibly to 3 feet in some sites). It’s normally classified as a biennial, producing just a mound of foliage the first year and flowers the second year. My experience it was different: from a winter sowing, the plants flowered the first year, starting in early June. I cut them back by about half in early July and they quickly produced new growth and flowers. Once you get rock harlequin to flower, it is very likely to self-sow. Native to much of northern North America. Usually best in partial shade; can take more sun in cooler regions. Zones 4 to 8.
Collected in July 2021. At least 25 seeds per packet.
Please read the germination information as well before ordering.