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Description
Erysimum Capitatum, also known as Western Wallflower, is a perennial plant native to western North America. It is a member of the Brassicaceae family and is known for its attractive flowers and pleasant fragrance. The plant is typically found in rocky and sandy areas, ranging from sea level to subalpine elevations.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Brassicales |
| Family | Brassicaceae |
| Genus | Erysimum |
Appearance
Erysimum Capitatum can grow up to 3 feet in height and has a spread of up to 2 feet. It has narrow, lance-shaped leaves that are grayish-green in color and can grow up to 4 inches in length. The plant produces bright yellow to orange-red flowers that are fragrant and bloom from late spring to early summer. The flowers are arranged in clusters at the top of the stem and can grow up to 1 inch in diameter.
Care Guide
Erysimum Capitatum requires moderate watering and should be planted in well-draining soil. The plant prefers full sun to partial shade and is hardy in USDA hardiness zones 5 to 9. When fertilizing, use a balanced fertilizer in the spring and mid-summer. Prune the plant after flowering to encourage new growth and prevent woody stems.
Common Pests & Diseases
Erysimum Capitatum is susceptible to aphids, caterpillars, and flea beetles. It can also be affected by powdery mildew and downy mildew. To prevent pests and diseases, keep the plant healthy and well-maintained, and remove any infected plant parts immediately.
Habitat
Erysimum Capitatum is commonly found in rocky and sandy areas, including grasslands, meadows, and open woods. It is native to western North America and can be found along the Pacific coast from Alaska to California, as well as in the Rocky Mountains.
Question and Answer
Q: Can Erysimum Capitatum grow in containers?
A: Yes, Erysimum Capitatum can grow in containers as long as the container is at least 12 inches deep and has good drainage.
Q: How often should Erysimum Capitatum be fertilized?
A: Erysimum Capitatum should be fertilized twice a year, in the spring and mid-summer, with a balanced fertilizer.
Q: Can Erysimum Capitatum tolerate drought?
A: Erysimum Capitatum is moderately drought-tolerant but should be watered regularly during dry periods.
Q: How long do the flowers of Erysimum Capitatum last?
A: The flowers of Erysimum Capitatum typically last for 4 to 6 weeks.
Related Plants
- Erysimum cheiri (Wallflower)
- Erysimum linifolium (Flaxleaf Wallflower)
- Erysimum mediohispanicum (Hispanic Wallflower)
References
- USDA Plants Database: Erysimum capitatum
- Gardenia: Erysimum capitatum
- The Spruce: Erysimum Wallflowers
