This unusual, self-sowing annual blooms in June and July, looking like an euphorbia. With its blue-green leaves and understated, yellow-green flowers, bupleurum makes a great companion plant for showier flowers in the garden or the vase. It's shown here with the rose 'Alchymist'.
In The Bold & Brilliant Garden, Sarah Raven says that bupleurum is one of her "favorite plants for threading right through blocks of intense color." Also known as Hare's Ear, Thoroughwax, and Bupleurum griffithii.
Sowing Bupleurum Seeds:
Sow outdoors in early spring or fall. Barely cover the seeds. Full sun to part shade. Very slow to germinate. Self sows.