Is Erysimum a perennial?
Erysimum, more commonly known as wallflowers, are spring- to summer-flowering plants that provide vibrant displays of colour. Many varieties are hardy perennials and have attractive evergreen foliage, adding structure and aesthetic value to the garden even after the flowers have faded. Wallflowers are spring and summer-flowering bedding plants providing a wealth of colour for beds, borders and containers. Many also produce delightfully scented flowers. They can be annuals, biennials (growing in their first year and flowering in the second) or perennials.Erysimum ‘Fragrant Sunshine’, commonly known as Fragrant Sunshine Wallflower, is a standout perennial that enchants with its striking yellow flowers. Renowned for its vibrant color and delightful fragrance, this variety promises to bring a cheerful ambiance to any garden setting.Erysimum ‘Bowles Mauve’ is sometimes called ‘the ever-lasting wallflower, and for good reason. It provides great value to the garden by flowering for up to 20 week a year. However, this comes at a cost to the plant that tends to go ‘leggy’ and burn itself out in a few years.Erysimum, commonly known as Wallflower, is a genus of flowering plants that belongs to the Brassicaceae family. Depending on the species and climate, Wallflowers can be grown as annuals, biennials, or perennials. Wallflowers are prized for their showy flowers and easy-to-grow nature.
What is the lifespan of a wallflower?
As a biennial, the wallflower ‘Rembrandt’ has an overall lifespan of about two years. While longer lived than the bedding varieties, perennial wallflowers do tend to be short-lived, becoming somewhat leggy and untidy after a few years. Fortunately, they can be easily replaced by young plants raised from cuttings (see ‘How to propagate erysimum’ section for more details).Deadheading plants and removing the developing seedpod may prolong flowering of bedding wallflowers. After flowering cut back perennial wallflowers to keep them compact. This, along with liquid feeds, will also help encourage further flushes of flowers well into autumn.Left to their own devices, perennial erysimums have a tendency to become woody and leggy. They fizzle out within four to five years, usually succumbing over winter. The way to extend the lifespan of wallflowers and keep them compact and vigorous is to give them a yearly midsummer trim by cutting into the foliage.Deadhead Flowers Regularly • Remove spent blooms to encourage plants to produce more flowers and extend their blooming period. Tip: Use sharp scissors or pruners to avoid damaging the plant.