Rhododendron johnstoneanum

Large species rhododendron

  • Flowering Time : May
  • Height in 10 years : 3 metres / 9 feet 10 inches

Description

Spreading habit, bristly twigs, attractive reddish brown peeling bark. Dark green hairy leaves. Creamy yellow flowers. Needs shelter from cold winds.

Flower Months

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Rhododendrons will start flowering around this time, depending on the season, for a week or so.

Hardiness

  • UK Zone : 2/3
  • RHS Zone : H (Fully Hardy)
  • EGF Zone : H3
  • US Zone : 8A/7B
  • Min Temp : -12 to -15°C (10°F to 5°F)

Somewhere between Hardy outdoors in milder parts of UK (such as Cornwall, Argyll), southern Ireland, most of California, also west Vancouver Island, Canada, most of New Zealand, Tasmania. amaged in severest winters. Often early into flower and growth. AND Hardy in a sheltered site in most UK, Coastal France and northern Italy and Pacific Northwest gardens, but may be damaged in severest winters. Often early into flower and growth.