Scientific Name:
Linaria vulgaris
Common Name:
toadflax
Family Name:
Scrophulariaceae
Plant Type:
Herbaceous perennial, Invasive plant
Key ID Features:
Leaves linear, blue-green, 2-6cm long and 1-5mm broad; florets similar to snapdragon, 25-33mm long, pale yellow except for the lower tip which is orange; capsules 5-11mm long x 5-7mm wide.
Habit:
Stiffly upright
Form:
Pyramidal - widely
Texture:
Medium - fine
Mature Height:
0.4 - 0.7m
Mature Spread:
0.1 - 0.3m
Growth Rate:
Fast
Origin:
Central / west Asia, Europe
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun
Soil/Growing Medium:
Landscape Uses:
Perennial border, Summer interest
Additional Info:
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Glabrous
Colour in Summer:
Bluish, Green
Shapes:
Linear
Apices:
Acuminate
Bases:
Truncate
Margins:
Entire
Inflorescence Type:
Raceme, Floriferous
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Bilabiate
Ovary Position:
Superior
Colour (petals):
Yellow (lower tip is orange)
Flower Time at Peak:
Aug, Sep
Fruit Type:
Capsule
Fruit Colour:
Brown
Fruiting Time:
Oct
Bark or Stem Colour:
Green
Propagation:
Seed
Pest Susceptibility:
(Deer resistant, Rabbit resistant)
