Coastal Wallflower (Erysimum Capitatum)

Coastal Wallflower

Features and Characteristics

Erysimum capitatum, commonly called Western wallflower, is broadly distributed throughout western North America. It is also native to Missouri where it primarily occurs on rocky open ground, limestone glades and bluffs in the central part of the State (Steyermark). It is an erect biennial that features a dense, rounded flower cluster (raceme) of showy, 4-petaled orange to yellow-orange to maroon to nearly white flowers (3/4″ wide) atop a leafy upright stem growing 1-2′ tall. Linear to narrow oblong leaves (to 3″ long) appear in a basal rosette and along the stem. Flowers give way to 4-angled seed pods (to 4″ long).

Genus name comes from the Greek word eryomai meaning blistercress.

Specific epithet is in reference to either the head-like shape of the flower cluster or the knobby stigma.

Care and Maintenance

Easily grown in average, dry to medium, well-drained soils in full sun to light shade. This flower is a biennial, so self-seeding will be necessary for it to remain in the garden. Cut back spent flowering stems only after seed has been harvested or has ripened and fallen to the ground.

Coastal Wallflower (Erysimum Capitatum) Requirements

Hardiness zone	3 - 7
Sun light	Full Sun
Water	Dry To Medium
Maintenance	Low

Common Problems

No serious insect or disease problems.

Uses

Rock gardens. Native plant gardens or naturalized areas.

Coastal Wallflower (Erysimum Capitatum) Details

Common name	Coastal Wallflower
Botanical name	Erysimum Capitatum
Plant type	Herbaceous Perennial
Family	Brassicaceae
Hardiness zone	3 - 7
Water	Dry To Medium
Maintenance	Low
Flower color	Orange To Yellow-Orange To Copper
Flowering period	May - July
Height	1 - 2 Ft.
Width	0.50 To 1 Ft.