Rhododendron calostrotum subsp. Keleticum | Also known as: Rhododendron keleticum | Rating: 0 votes | Print / Pdf

Rhododendron: It doesn't like too much sun, it doesn't like too much water. It's a fussy beggar!

Rhododendron calostrotum subsp. Keleticum is a dwarf species of rhododendron introduced in 1949. It grows to around just 30cm in height and grows in a mound with shiny oval leaves and bright pink funnel shaped flowers that grow up out of the foliage. They're best grown in partial shade as they suffer if they get too hot. They're easy to grow and work well in borders and containers. It likes acidic soil and has been given an RHS Award of Garden Merit. It can be prone to pests and disease; caterpillars, aphids and powdery mildew can all be a problem.

Rate it:
Known dangers?
  • no
Height [m]
  • 0.3
Spread [m]
  • 0.9
Dominant flower colour
  • Red
Flower Fragrance
  • No, neutral please
Flowering seasons
  • Late spring
  • Early summer
Foliage in spring
  • Green
Foliage in summer
  • Green
Foliage in Autumn
  • Green
Foliage in winter
  • Green
Propagation methods
  • semi-ripe cuttings
  • grafting
  • layering
Growth habit
  • Prostrate
  • Acidic
Hardiness zone
  • Z7-9
Heat zone
  • H9-7
Winter temperatures [°C]
  • -18 - -1
Heat days
  • 60 - 150
  • well-drained
  • well-drained but frequently watered
Soil type
  • sandy
  • Clay
  • loams
Sun requirements
  • Partial shade
  • Sheltered
Standard category
  • Trees & shrubs
  • Shrubs
Grown for
  • Attractive Flowers
Creative category
  • For Beginners
  • Colours
  • For every season
Gardening expertise
  • beginner
Time to reach full size
  • up to 20 years
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PLANTS Rhododendron

The name Rhododendron comes from the Greek for rose tree, although it isn't a rose it has a similar look. It's a large genus, there are more than a thousand species of rhododendron and nearly all of them have large and impressive flowers. There are various sized rhododendron species , from shrubs to large trees. The largest has been recorded at 98 feet tall! The flowers are usually quite showy, with lots of petals and there are many colours, from white to orange or red. They can be susceptible to pests, especially caterpillars. They prefer acidic well-drained soil. Rhododendrons are toxic, they can be harmful to cattle and people have even been known to become ill after eating honey made by bees collecting nectar from rhododendrons.