Corydalis Sempervirens is a biennial plant related to the poppy. It is commonly called Roman wormwood, although it is not to be confused with artemisia pontica, which is a true wormwood known by the same name. In the case of corydalis sempervirens, the name seems to be based on the appearance of it leaves, which resemble those of artemisia absinthium, the species of wormwood used to make absinthe. Sempervirens is also known as Pink Corydalis because of its attractive tubular, yellow-tipped, pink flowers. This species is very cold hardy as it naturally grows in areas that include Alaska and Canada. It seems to be suited to areas where forest fires occur. The seeds can withstand fire, and its populations are known to thrive following a period of fire when competition is wiped out and nutrients are made readily available. Pink corydalis commonly grows in dry, rocky soils, and it is makes a great addition to rock gardens.
Cold treatment is recommended for this species. Sow the seeds on the surface of a well-draining, sandy soil mix and place them in the fridge or in outdoor cold temperatures for 3-4 weeks. This species has a preference for soils with an acidic ph. It enjoys full sun to partial shade and has a minimal water requirement.