Erysimum capitatum (Coastal Wallflower)
Sand-Dune Wallflower, Western Wallflower, Prairie Rocket, Coast Wallflower, Coastal Wallflower
Erysimum capitatum (Coastal Wallflower) is an erect biennial or short-lived perennial boasting densely crowded clusters of orange, yellow or reddish flowers atop leafy upright stems in late spring to mid summer. Providing weeks of color, the four-petalled flowers are attractive to bees, butterflies and other pollinators. The blossoms give way to 4-angled seed pods. Although short-lived, Coastal Wallflower has a strong tendency to self-seed and keeps a presence in the garden. The foliage of narrow oblong leaves, 3 in. long (7 cm) appears in a basal rosette and along the stems. Showy in a wildflower garden, Coastal Wallflower looks great when planted in swathes or drifts, or interspersed with other water-wise plants.
- Grows up to 12-24 in. tall (30-60 cm) and 6-12 in. wide (15-30 cm).
- Performs best in full sun in dry to medium, alkaline, well-drained soils. Drought tolerant once established. Tolerates light shade and poor soils.
- Easy to grow, this plant can be used in rock gardens, native plant gardens or naturalized areas.
- No serious pest or disease issues.
- Cut back spent flowering stems only after seed has been harvested or has ripened and fallen to the ground.
- Propagate by seed in late summer or early fall.
- Native to western North America.
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Requirements
Hardiness | 3
– 7 |
---|---|
Plant Type | Perennials |
Plant Family | Erysimum - Wallflowers |
Exposure | Full Sun |
Season of Interest |
Spring (Late) Summer (Early,Mid) |
Height | 1' – 2' (30cm – 60cm) |
Spread | 6" – 1' (15cm – 30cm) |
Spacing | 6" – 12" (15cm – 30cm) |
Water Needs | Low, Average |
Maintenance | Low |
Soil Type | Clay, Loam, Sand |
Soil pH | Alkaline, Neutral |
Soil Drainage | Moist but Well-Drained, Well-Drained |
Characteristics | Showy |
Native Plants | United States, Alaska, California, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin, Northeast, New York, Pacific Northwest, Idaho, Oregon, Washington, Rocky Mountains, Colorado, Montana, Utah, Wyoming, Southeast, Arkansas, Tennessee, Virginia, West Virginia, Southwest, Nevada, Arizona, New Mexico, Oklahoma, Texas |
Tolerance | Drought, Dry Soil, Rocky Soil |
Attracts | Butterflies |
Garden Uses | Beds and Borders |
Garden Styles | Coastal Garden, Gravel and Rock Garden, Informal and Cottage |
By Sundry Photography, Shutterstock
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
Requirements
Hardiness | 3
– 7 |
---|---|
Plant Type | Perennials |
Plant Family | Erysimum - Wallflowers |
Exposure | Full Sun |
Season of Interest |
Spring (Late) Summer (Early,Mid) |
Height | 1' – 2' (30cm – 60cm) |
Spread | 6" – 1' (15cm – 30cm) |
Spacing | 6" – 12" (15cm – 30cm) |
Water Needs | Low, Average |
Maintenance | Low |
Soil Type | Clay, Loam, Sand |
Soil pH | Alkaline, Neutral |
Soil Drainage | Moist but Well-Drained, Well-Drained |
Characteristics | Showy |
Native Plants | United States, Alaska, California, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin, Northeast, New York, Pacific Northwest, Idaho, Oregon, Washington, Rocky Mountains, Colorado, Montana, Utah, Wyoming, Southeast, Arkansas, Tennessee, Virginia, West Virginia, Southwest, Nevada, Arizona, New Mexico, Oklahoma, Texas |
Tolerance | Drought, Dry Soil, Rocky Soil |
Attracts | Butterflies |
Garden Uses | Beds and Borders |
Garden Styles | Coastal Garden, Gravel and Rock Garden, Informal and Cottage |