Plant of the Month - Erysimum Bowles Mauve
Erysimum ‘Bowles’s Mauve’, often referred to as perennial wallflower, is a much-loved garden plant prized for its exceptionally long flowering season and soft, mauve-purple blooms. With its shrubby habit and ability to flower for months on end, it’s a reliable choice for borders, containers, and wildlife-friendly gardens.
‘Bowles’s Mauve’ is a sterile hybrid, which means it doesn’t set seed but instead channels its energy into continuous flowering. Its narrow, grey-green leaves provide an attractive backdrop to clusters of fragrant, four-petaled flowers that appear from early spring through autumn—and often even into winter in mild climates.
Growing Conditions & Care
To get the best out of Erysimum ‘Bowles’s Mauve’, aim to replicate its preferred Mediterranean-like conditions:
Light:
Full sun is essential. The plant thrives with at least 6–8 hours of direct sunlight daily. Too much shade can lead to leggy growth and reduced flowering.
Soil:
Well-drained soil is critical. Sandy or loamy soils are ideal, and it performs especially well in poorer soils rather than overly rich ones. Heavy clay should be improved with grit or organic matter to enhance drainage.
Temperature & Hardiness:
It is generally hardy in mild climates but may struggle in harsh winters or waterlogged soils. In colder regions, planting in a sheltered spot or near a wall can help protect it.
Watering:
Moderate watering is best. Once established, the plant is relatively drought-tolerant. Overwatering or soggy soil can quickly lead to root rot.
Care & Maintenance
Although relatively low-maintenance, a few simple practices will keep your plant looking its best:
Pruning:
Regular light pruning encourages bushier growth and prolongs flowering. Trim back spent flower stems every few weeks. A more substantial cutback in late spring or early summer helps prevent legginess.
Feeding:
Erysimum ‘Bowles’s Mauve’ doesn’t require heavy feeding. A light application of a balanced fertiliser in spring is sufficient. Avoid excessive feeding, which can reduce flowering.
Deadheading:
While not essential due to its sterile nature, removing faded blooms can keep the plant tidy and encourage continuous flowering.
Lifespan & Replacement:
This plant is often short-lived (typically 3–5 years). It can become woody and less vigorous over time, so gardeners often take cuttings to propagate new plants and maintain continuity.
Garden Uses
This versatile plant fits beautifully into many garden styles:
- Cottage gardens for a relaxed, informal look
- Gravel gardens where drainage is excellent
- Containers on patios or balconies
- Mixed borders paired with drought-tolerant perennials
Its long flowering season makes it especially valuable for adding consistent colour when other plants fade.
Why Buy Me?
Erysimum ‘Bowles’s Mauve’ is a dependable and rewarding plant that offers months of colour with relatively little effort. By providing plenty of sunlight, excellent drainage, and occasional pruning, gardeners can enjoy its elegant blooms almost year-round. For anyone looking to extend the flowering season and support pollinators, this wallflower is a standout choice.
