Edmonton Native Plant Society
native plant stewards
Native Plants - O
Oenothera biennis
Yellow Evening Primrose
Evening Primrose family - Onagraceae

Biennial; forms leafy rosette 1st year; flower stalks appearing 2nd year. Flowers open in evening. Fairly prolific self-seeder; can be a nuisance. Allow only a few seed pods to ripen for replacement plants; cut off the rest.

Bloom time: June - August
Height: 50 - 150cm (18-70”)
Growing conditions: Sun; average soil.

Easy germinator. Direct seed in spring or late fall.
Opuntia fragilis
Brittle Prickly Pear Cactus
Cactus family - Cactaceae
Osmorhiza longistylis
Smooth Sweet Cicely
Carrot family - Umbelliferae

Tall leafy bushy plant for shade or semi-shade. Clusters of small white flowers in compound umbels are followed by large, distinctive black seeds. Leaves, roots and immature green seeds are edible.

Bloom time: June, July
Height: 50 - 80 cm (20 - 32")
Growing conditions: Semi-shade to deep shade; moist soil.