Wallflower (Erysimum Cheiri)

Plant: Table of Contents

Wallflower (Erysimum cheiri): A Gardener’s Guide

What is Wallflower (Erysimum cheiri)?

Wallflower (Erysimum cheiri) is a charming and versatile perennial plant that is highly prized for its vibrant blooms and captivating fragrance. Belonging to the Brassicaceae family, the wallflower plant is native to the Mediterranean region and is known for its resilience and adaptability. With its colorful flowers and delightful scent, it is a favorite among gardeners and landscape designers alike.

The name “wallflower” originates from the plant’s tendency to grow in the nooks and crannies of walls, where its seeds find suitable conditions to take root. This beautiful plant has been cultivated for centuries, and its timeless appeal continues to grace gardens, borders, and containers in contemporary landscapes.

Key Takeaways

Wallflower (Erysimum cheiri)

  • Scientific Name: Erysimum cheiri
  • Family: Brassicaceae
  • Lifecycle: Perennial
  • Habit: Upright, bushy
  • Blooming Season: Spring to early summer
  • Fragrance: Sweet, spicy
  • Colors: Various, including shades of yellow, orange, red, and purple
  • Uses: Ornamental, fragrant cut flowers
  • Growth Habit: Compact, bushy



Wallflowers are beloved for their ornamental value in gardens and landscapes. They are commonly used for:

  • Garden borders
  • Container gardening
  • Cut flowers
  • Pollinator gardens
  • Fragrance gardens
  • Rock gardens
  • Cottage gardens
  • Landscape edging


Wallflowers have moderate water needs and prefer well-draining soil. They thrive in slightly moist conditions but are susceptible to root rot in excessively wet soil. It is essential to water them when the top inch of the soil becomes dry. During the summer months, regular watering is necessary to maintain healthy growth and vibrant blooms.


Wallflowers thrive in full sun to partial shade. They require at least 6 hours of sunlight per day to bloom abundantly and maintain robust foliage. In hotter climates, some afternoon shade can be beneficial to prevent the plants from wilting.


A well-balanced fertilizer applied in spring can support the growth and blooming of wallflowers. A slow-release granular fertilizer or a liquid fertilizer diluted to half-strength can provide the necessary nutrients for healthy development.


Well-draining, loamy soil with a slightly alkaline pH suits wallflowers best. Amending the soil with compost or well-rotted organic matter can enhance its fertility and structure. It is essential to ensure that the soil does not become waterlogged, as wallflowers are susceptible to root issues in overly damp conditions.


Regular deadheading of spent blooms can prolong the flowering period of wallflowers and encourage the production of new blossoms. Additionally, pruning the plants in late summer can help maintain their compact shape and encourage fresh growth.


Wallflowers can be propagated from seeds or cuttings. Sow seeds in early spring, and they will germinate within a few weeks, given the right conditions. Softwood cuttings taken in summer can also root easily and produce new plants.

Container Popularity

Wallflowers are popular choices for container gardening due to their compact size, vibrant blooms, and delightful fragrance. They add charm to outdoor spaces and can be easily incorporated into various designs and themes.

Common Diseases

Disease Diagnosis

Wallflowers are generally resilient to common diseases, but they can be susceptible to:

  • Root rot (caused by overly wet soil)
  • Powdery mildew
  • Downy mildew
  • Botrytis blight

Regular monitoring for signs of disease, such as wilting, yellowing leaves, or powdery growth, can help in early diagnosis and prompt treatment.

Common Pests

Wallflowers may encounter pests such as:

  • Aphids
  • Caterpillars
  • Slugs and snails
  • Spider mites

Vigilance and the use of organic pest control methods can help manage pest infestations and protect the plants from damage.

Botanist’s Tips

  1. When planting wallflowers, space them adequately to allow for good air circulation, which can help prevent fungal diseases.
  2. Incorporate a layer of mulch around the base of wallflowers to retain soil moisture and deter weed growth.
  3. Consider companion planting with other pollinator-friendly flowers to create a vibrant and ecologically diverse garden.

Fun Facts

  • Wallflowers are sometimes referred to as “Cheiranthus,” a previous genus name, and can be found under this name in some literature.
  • The fragrance of wallflowers varies from sweet to spicy, with different varieties offering distinct scents.
  • The wallflower plant has been associated with various symbols and has been used in folklore and traditional ceremonies for centuries.

Links to External Resources

For further information and resources on wallflowers, refer to the following:

  1. Royal Horticultural Society (RHS) – Erysimum
  2. University of California Agriculture and Natural Resources – Integrated Pest Management for Home Gardeners and Landscape Professionals
  3. Missouri Botanical Garden – Erysimum cheiri
  4. American Society for the Prevention of Cruelty to Animals (ASPCA) – Toxic and Non-Toxic Plants: Wallflower

In conclusion, the wallflower (Erysimum cheiri) with its captivating blooms, delightful fragrance, and versatile uses, is a delightful addition to any garden or landscape. By understanding its cultural needs, common pests and diseases, and how to care for it, gardeners can enjoy the beauty and charm that this beloved perennial plant brings to outdoor spaces.

For enthusiasts of ornamental flowers, fragrant blooms, and pollinator-friendly plants, the wallflower remains a timeless favorite, adding color, fragrance, and character to gardens and outdoor settings throughout the seasons. Whether in garden beds, containers, or floral arrangements, the wallflower continues to hold its place as a beloved and cherished plant in horticulture and landscape design.

As we continue to appreciate the beauty of nature and the joy it brings, the enduring appeal of the wallflower plant serves as a testament to the significance of plants in enriching our lives and connecting us to the natural world.

Picture of Peter Taylors

Peter Taylors

Expert botanist who loves plants. His expertise spans taxonomy, plant ecology, and ethnobotany. An advocate for plant conservation, he mentors and educates future botanists, leaving a lasting impact on the field.