Erysimum Cheiri - Constant Cheer
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Erysimum cheiri ‘Constant Cheer’: A Hardy Perennial Radiating Vibrant Yellow Flowers

Erysimum cheiri ‘Constant Cheer’ is a captivating cultivar that has captivated garden enthusiasts with its vibrant blooms and enduring charm. This delightful cultivar, also known as the Wallflower ‘Constant Cheer’ or Cheiranthus ‘Constant Cheer,’ is a member of the Brassicaceae family. It showcases an abundance of bright yellow flowers that bloom in spring and emit a sweet fragrance, attracting pollinators such as butterflies and bees. The blossoms form elegant spikes that can reach impressive heights, adding vertical interest to garden beds and borders.

Erysimum cheiri ‘Constant Cheer’ is an evergreen perennial, revered for its ability to bring color and cheer to gardens year after year. The plant features dark green, lance-shaped leaves that provide an attractive backdrop to the vibrant flowers. Its compact growth habit and bushy form make it suitable for various garden settings, from small urban gardens to larger landscapes.

Flower Description: The flowers of Erysimum cheiri ‘Constant Cheer’ are bright yellow and are borne in spikes up to 12 inches long. The flowers have a sweet fragrance and are attractive to butterflies and other pollinators.

Leaf Description: The leaves of Erysimum cheiri ‘Constant Cheer’ are dark green and oval-shaped. The leaves are oppositely arranged on the stems.

Characteristics:

  • Family: Brassicaceae
  • Other Names: Wallflower ‘Constant Cheer’ or Cheiranthus ‘Constant Cheer’
  • Type: Bushy, evergreen perennial
  • Leaf Color: Dark green, linear or lance-shaped
  • Flower Color: Orange-red, lightening with age
  • Flowering Season: Spring and summer

Cultivation of Erysimum cheiri ‘Constant Cheer’:

Grow Erysimum cheiri ‘Constant Cheer’ in full sun, preferably in poor to somewhat fertile, well-drained soil. It thrives in alkaline soil conditions. Propagation is typically done through seed sowing in early summer.

Planting: Plant Erysimum cheiri ‘Constant Cheer’ in the spring or fall. It prefers full sun or partial shade and well-drained soil. Amend the soil with compost or organic matter during planting. Space plants 12-18 inches apart.

Watering: While Erysimum cheiri ‘Constant Cheer’ is drought-tolerant, regular watering is beneficial, especially during hot and dry weather. Water deeply to ensure the entire root system is wet.

Fertilizer: Erysimum cheiri ‘Constant Cheer’ does not require excessive fertilization. Apply a light application of balanced fertilizer once a month during the growing season.

Pests and Diseases: This cultivar is relatively resistant to pests and diseases. However, be on the lookout for aphids, spider mites, and scale insects. Treat infestations with insecticidal soap or neem oil.

Deadheading: To prolong the flowering period, pinch or snip off spent blooms using your fingers or garden shears.

Winter Care: Erysimum cheiri ‘Constant Cheer’ is hardy in USDA zones 4-9. In colder regions (zones 4-5), protect the plant from winter cold by covering it with a burlap sack or similar material.

Propagation: Propagate Erysimum cheiri ‘Constant Cheer’ through division or seed. The division is the most common method, carried out in spring or fall. Ensure each division has at least one healthy root system. Start seeds indoors 6-8 weeks before the last frost, and thin the seedlings to 12-18 inches apart after germination.

Potential Pests and Diseases: Be vigilant for slugs, snails, flea beetles, downy mildew, clubroot, leaf spot, or mosaic virus.

Erysimum Cheiri - Constant Cheer
Erysimum cheiri ‘Constant Cheer’ at the Flower Walk in Kensington Gardens.

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