Scientific Name:
Erysimum cheiri
Pronunciation:
ur-ISS-ih-mum KAIR-eye
Common Name:
English wallflower
Family Name:
Brassicaceae
Plant Type:
Biennial, Herbaceous perennial
Key ID Features:
Leaves basal and alternate, oblong-lanceolate, most blades 5-10(-20)cm long x 1-2cm wide; flowers 2-5cm wide, 4 petals, most yellow to orangish (reddish cvs.), arranged in racemes (corymb-like in some cvs), Apr-May; siliques 3-10cm long x 3-4mm wide.
Habit:
Upright
Form:
Oval - horizontal
Texture:
Medium - fine
Mature Height:
0.4 - 0.7m
Mature Spread:
0.3 - 0.6m
Growth Rate:
Slow
Origin:
Europe (Naturalized In BC)
Hardiness Rating:
Zone 6: (-23 to -18 °C)
Exposure:
Full sun
Soil/Growing Medium:
Rocky or gravelly or dry, Well-drained
Water Use:
Moderate, Low
Landscape Uses:
Container planting, Ground cover, Mixed shrub border, Perennial border, Rock garden, Spring interest
Additional Info:
Google. Cultivars shown may include E. 'Charity Yellow' and E. 'Charity Cream Yellow'. Some wallflower cultivars may look similar to stock (Matthiola).
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate, Spiraled, Basal
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Pubescent
Colour in Fall:
Green
Shapes:
Lanceolate, Oblanceolate, Oblong, Ovate
Apices:
Acuminate
Bases:
Attenuate
Margins:
Entire, Serrate
Inflorescence Type:
Raceme, Corymb-like
Flower Morphology:
Flowers perfect
Number Of Petals:
4
Corolla Shape:
Cruciform
Ovary Position:
Superior
Colour (petals):
Showy, Orange, Yellow, Purple, Pink, Red, Dark-red
Flower Scent:
Fragrant
Flower Time at Peak:
Apr, May
Fruit Type:
Silique
Fruit Colour:
Brown
Fruiting Time:
Oct, Nov
Bark or Stem Colour:
Green
Propagation:
Seed
Maintenance:
Low
Pest Susceptibility:
Fungal leaf spot, Rust, Slugs or snails (Drought tolerant)
