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Rosa /ˈɹoʊzə/

Common name: Rose

Rosa is a genus of over 300 species of woody, often thorny shrubs and climbers in the rose family (Rosaceae), native mainly to Asia with smaller numbers in Europe, North America, and Africa. Roses have been cultivated for millennia, giving rise to tens of thousands of cultivars grown for their showy, fragrant flowers. Many species also produce nutrient-rich fruits called rose hips.

Care summary

Sun Full sun, at least 6 hours daily
Water Deep, regular watering at the base; avoid wetting foliage
Soil Rich, loamy, slightly acidic, well-drained soil
Hardiness Zones 3–11 (varies widely by species and cultivar)
Mature height 0.3–6 m (1–20 ft) depending on type
Pet safe Non-toxic; thorns can cause physical injury

Fun facts

  • Rose "thorns" are technically prickles — outgrowths of the epidermis rather than modified stems.
  • Rose hips are among the richest plant sources of vitamin C and were used for syrup during WWII rationing.
  • The oldest known living rose bush, growing on the wall of Hildesheim Cathedral in Germany, is estimated to be over 700 years old.
  • There are more than 30,000 registered rose cultivars worldwide.

Common problems

    • Remove and destroy fallen leaves
    • Water at base in morning
    • Apply fungicide when spots appear
    • Plant resistant varieties
    • Blast off with strong water spray
    • Encourage ladybugs and lacewings
    • Use insecticidal soap if heavy
    • Space plants for good airflow
    • Prune out crowded stems
    • Apply sulfur or neem spray
    • Hand-pick beetles into soapy water
    • Avoid pheromone traps near roses