Scientific Name: Linaria vulgaris
Common Name: toadflax
Family Name: Scrophulariaceae
Origin: Central / west Asia, Europe
Hardiness Zone: Zone 4: (-34 to -29 °C)
Plant Type: Herbaceous perennial, Invasive plant
Mature Size: 0.4 - 0.7m x 0.1 - 0.3m (height x width)
Habit: Stiffly upright
Form: Pyramidal - widely
Texture: Medium - fine
Landscape Uses: Perennial border, Summer interest
Exposure: Full sun
Soil or Media:
Leaves: Simple, Alternate, Soft flexible, Pinnate venation, Glabrous, Linear, Entire
Flowers: Raceme, Yellow, Aug-Sep
Fruit: Capsule, Brown, Oct
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.