Cheiranthus


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Related to Cheiranthus: Cheiranthus cheiri, Erysimum cheiri

Cheiranthus

 

a genus of subshrubs and biennial or perennial herbs of the family Cruciferae. The plants are closely related to the genus Erysimum. There are about ten species, distributed on the Madeira and Canary islands, in the Mediterranean countries, northward as far as Central Europe, in China (Tibet, Kansu, Yunnan), and on the Pacific coast of North America. The wall flower (C. cheiri) has been used in floriculture since early antiquity.

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The taxonomists have now put cheiranthus and erysimum in the same genus and so they are all called erysimum nowadays.
Perennials that deliver lots of showy blooms in spring and summer without copious amounts of water include bougainvillea 'Crimson Jewel', gaillardia (pictured at left), erysimum (also sold as Cheiranthus 'Mauve clusters'), lavender, garden penstemon, salvia superba 'East Friesland', and yarrow.
Polyanthus and wallflowers are reliable as are winter flowering pansies while the Siberian wallflower, cheiranthus, is useful as you can cut it back hard after flowering and it will bloom again in summer.