Common dogwood (Cornus sanguinea) – hardiness zones in USDA, RHS, Canadian & Australian systems

Native hedgerow shrub with white flat-topped flower clusters in summer, black berries in autumn and rich red young stems that glow through winter.

Hardiness ratings

Common dogwood hardiness across the four zone systems
System	Rating	Temperature range	How to read it
USDA hardiness zone	Zone 4–8	−34.4 °C to −6.7 °C	Plant tolerates down to this zone
RHS hardiness rating	H7	down to −20 °C	Plant needs at least this level of cold tolerance
Canadian plant hardiness zone	Zone 4–8	−29 °C to −1 °C	Plant tolerates down to this zone
Australian (ANBG) zone	Zone 2–6	−10 °C to 15 °C	Plant tolerates down to this zone

Larval host plant for the green hairstreak butterfly
Bird-attracting black berries through autumn
Coppice or hard prune in late winter to keep the brilliant red young winter stems coming each year
Distinct from the showier flowering dogwoods (Cornus florida and others) — common dogwood is grown for its winter stems and wildlife value, not for its flowers