Cotton rose (Confederate rose)

Hibiscus mutabilis

Tall Chinese deciduous shrub or small tree with large maple-like leaves and rosette-double flowers that open white in the morning, age through pink during the day, and close deep red at dusk.

Hardiness ratings

Cotton rose (Confederate rose) hardiness across the four zone systems
SystemRatingTemperature rangeHow to read it
USDA hardiness zone Zone 7–11 −17.8 °C to 10 °C Plant tolerates down to this zone
RHS hardiness rating H4 −10 °C to −5 °C Plant needs at least this level of cold tolerance
Canadian plant hardiness zone Zone 8–9 −7 °C and warmer Plant tolerates down to this zone
Australian (ANBG) zone Zone 3–7 −5 °C and warmer Plant tolerates down to this zone

Growing notes

  • Native to southern China, naturalised across the southeastern US and other warm-temperate regions
  • Single flowers complete the white-to-red colour change in a single day — the source of the species name "mutabilis" (changing)
  • Distinct from the other hibiscus species in the database (rose-sinensis, sabdariffa, cannabinus kenaf, tiliaceus sea hibiscus, syriacus implicit, mutabilis here)
  • Cut back hard in spring for compact growth and abundant flowering

Categories

Related plants

Cross-check Cotton rose (Confederate rose) against your zones

Reference

Cotton rose (Confederate rose) on Wikipedia