Veronicastrum sibiricum, commonly known as Culver’s root or Siberian veronicastrum, is a large, upright, perennial. It produces several upright leaf stalks which are topped by slender, tapered, candelabra-like, terminal spikes (to 8” long) of lavender-lilac salverform flowers which bloom in late summer to early fall (July-September). This plant resembles a tall veronica and was once included in the genus Veronica. 

Type: Hardy perennial

Hardiness zones: 3-8 

Height: 160cm, 63"

Location: Sun

Seeds per pack: 30

Germination: These seeds germinate rapidly depending on species and origin. If germination does not occur after 3–4 weeks a cooling period of 2–4 weeks is recommended.