Scientific Name:
Knautia arvensis
Pronunciation:
NAW-tee-uh are-VEN-siss
Common Name:
field scabious
Family Name:
Caprifoliaceae
Plant Type:
Herbaceous perennial, Invasive plant
Key ID Features:
Leaves mostly oblanceolate with variable lobbing or teeth, 5-25cm long x 2-10cm wide (decreasing up the plant); spikes are head-like, violet to blue to pinkish-purple.
Habit:
Open, Spreading, Upright
Form:
Oval - horizontal
Texture:
Medium - fine
Mature Height:
0.7 - 1.3m
Mature Spread:
0.6 - 1.0m
Growth Rate:
Fast
Origin:
Central / west Asia, Europe
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Full sun
Soil/Growing Medium:
Water Use:
Low, Summer dry
Landscape Uses:
Additional Info:
Google. Detailed description and distribution: E-Flora BC.
Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Opposite, Basal
Texture/Venation:
Soft flexible
Surfaces:
Pubescent
Colour in Fall:
Green
Shapes:
Oblanceolate
Apices:
Acute
Bases:
Attenuate
Margins:
Pinnately lobed
Inflorescence Type:
Umbel, Head-like
Flower Morphology:
Flowers perfect
Number Of Petals:
11+
Corolla Shape:
Rotate/stellate
Ovary Position:
Inferior
Colour (petals):
Showy, Blue, Violet, Purple
Flower Scent:
None
Flower Time at Peak:
Jul, Aug, Sep
Fruit Type:
Achene
Fruit Colour:
Green, Brown
Fruiting Time:
Jul, Aug
Additional Info:
Not showy, Persistent
Bark or Stem Colour:
Green
Organ Modifications:
Storage tap root
Propagation:
Seed
Pest Susceptibility:
(Drought tolerant)
