Wallflower Orange seeds - Erysimum allionii

Siberian Orange Wallflower, in Latin Erysimum allionii or Erysimum x marshallii is a biennial plant or a short-lived perennial. Its slightly fragrant flowers with a spicy scent bloom in clusters at the top of the stems, on well-branched plants, from late spring to early summer, in a beautiful shade of deep orange. It brightens sunny borders, rockeries or slopes, as well as pots on the balcony or terrace, and abundantly attracts bees and butterflies. It blooms for several weeks in the sun, in well-drained, even poor and chalky soil, and readily self-seeds where it thrives, it can also adorn vases indoors.

The Orange Erysimum allionii, also known as Erysimum x allionii, Cheiranthus x allionii is a horticultural hybrid resulting from the cross-breeding of several species of Erysimum and Cheiranthus, plants close to wallflowers that originate from the limestone and dry areas of Southern Europe, Central Asia, and North America. All these plants belong to the brassicaceae or cruciferous family. This variety is a very hardy perennial, but its lifespan is limited so it is often considered a biennial that blooms in the second year before disappearing. It is characterised by its bushy habit not exceeding 50 cm in height by 35-40 cm in spread, as well as its long flowering period from April-May to June-July. The particularly generous flowering consists of clusters of small flowers. The flowers are small (1.5 cm) but grouped in clusters of about ten centimetres and open successively. Sometimes, a small summer reblooming can be observed with careful pruning of this plant. Its dark green, evergreen foliage consists of very fine sword-shaped leaves. It is also decorative due to the contrast it creates with the flowering. This plant will survive normal winters in very well-drained soil, but its foliage may be slightly damaged by very severe frosts. 

Orange Wallflower is a perfect plant for all sunny, somewhat dry and rocky areas of the garden, as well as on the terrace, or in a planter placed on a sun-drenched wall. It also works well in rockeries or borders, alongside Love-in-a-Mist, Californian Poppies, Evening Primroses, Perennial Flax or in a border with taller plants like Purple Toadflax, Mulleins or Gauras, equally undemanding.