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Scientific Name:
Pelargonium x domesticum
Pronunciation:
pell-are-GOE-nee-um ex doe-MESS-tih-kum
Common Name:
pelargonium, regal geranium
Family Name:
Geraniaceae
Plant Type:
Annual, Flowering pot plant
Key ID Features:
Leaves rounded, heart- to kidney-shaped, irregularly toothed and crinkled margins; florets in simple umbels.

Habit:
Upright
Form:
Oval - vertical
Texture:
Medium
Mature Height:
0.4 - 0.7m
Mature Spread:
0.6 - 1.0m
Origin:
Africa
Hardiness Rating:
Zone 10: (-1 to 4 °C)
Exposure:
Full sun
Soil/Growing Medium:
Water Use:
Moderate
Landscape Uses:
Bedding plant, Container planting, Indoor plant
Additional Info:

Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Alternate
Texture/Venation:
Soft flexible
Surfaces:
Distinctive smell
Shapes:
Ovate
Apices:
Acute
Margins:
Incised

Inflorescence Type:
Flowers solitary
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Rotate/stellate
Ovary Position:
Superior
Colour (petals):
Showy, White, Violet, Pink, Magenta, Red, Dark-red
Flower Time at Peak:
May, Jun, Jul, Aug, Sep
Additional Info:
Requires cold temperature treatment for flower initiation.

Fruit Type:
Achene, Schizocarp, Aborted (hybrids) or absent
Fruit Colour:
Brown
Fruiting Time:
Aug, Sep, Oct
Additional Info:
Fruit insignificant,

Bark or Stem Colour:
Green
Propagation:
Stem tip cuttings
Optimal Temp.:
Low
Light Level:
High
Maintenance:
Medium
Other:
Cool temperature treatment required for flower initiation; this limits its use as an outdoor annual. Primarily used as a flowering houseplant.
Pest Susceptibility:
Abiotic disorder, Root rot, Thrips
Specific Pests:
Deer, Oedema

Course(s):
  • HORT 1193/1293
Location(s):
  • (GNH)  GreeNHouse
Location Map