Scientific Name:
Rhododendron
Pronunciation:
roe-doe-DEN-drun
Common Name:
deciduous hybrid azalea
Family Name:
Ericaceae
Plant Type:
Shrub - deciduous
Key ID Features:
Compact, deciduous with very cold hardy buds; leaves elliptic to obovate, 7-9cm long x 2-3cm wide; flowers clustered, very bright colours in early spring; fruit usually does not form.
Habit:
Upright
Form:
Oval - vertical
Texture:
Medium - coarse
Mature Height:
0.7 - 1.3m
Mature Spread:
1.0 - 1.5m
Growth Rate:
Fast
Origin:
Garden origin
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Well-drained
Landscape Uses:
Spring interest
Additional Info:
Google. Cultivars or groups shown may include R. 'Exbury Hybrid', R. 'Northern Lights', and R. 'Pink and Sweet'.
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Pubescent
Colour in Summer:
Green, Dark-green
Shapes:
Elliptic, Obovate
Apices:
Acute
Bases:
Attenuate
Margins:
Ciliate, Undulate (wavy)
Inflorescence Type:
Raceme, Floriferous
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Campanulate
Ovary Position:
Superior
Colour (petals):
Showy, White, Orange, Yellow, Pink, Red
Flower Time at Peak:
May
Fruit Type:
Capsule, Aborted (hybrids) or absent
Fruit Colour:
Brown
Fruiting Time:
Additional Info:
Fruit insignificant, sterile hybrids
Bark or Stem Colour:
Pest Susceptibility:
Fungal leaf spot, Galls, Root rot
Course(s):
- HORT 2355
- Level 3 Apprenticeship
Location(s):
- (NCA) Not Currently Available : needed