Bupleurum

A pleasantly architectural plant with upright stems piercing a succession of single leaves topped with a small constellation of flowers, marked by a star-like collection of sepals in which the several inconspicuous-but-charming flowers lie. The overall effect is very sunny and would go great in a meadow-esque setting with fellow Apiaceae members or the like. Not to mention this is one cool customer, hardy down to -35 Fahrenheit, making it cold tolerant anywhere in the continental US!

A quietly fun perennial that should be on every green flower afficionado's hit list. Lance-shaped leaves and branched stems bearing dull yellow tiny button flowers arising from green buds and all surrounded by a prominent green collar. Lovely green effect with plenty of structural detail. Archibald collection from the Pyrenees/Cantabrian Mts. Jim and Jenny Archibald were great plant hunters with a fabulous seed business and we have one of greenhouses named for them.