Ptilotrichum spinosum roseum - Spiny Alyssum leafy acid soil will spill down a wall

will spill down a wall or bank from mid spring until frosts

Good drainage although it will grow on sand or clay if moist and shady

a profusion of bright pink/purple blooms with darker markings and a brighter eye

some water in summer during growth

Ptilotrichum spinosum roseum - Spiny Alyssum leafy acid soil will spill down a wall"This plant offers a half basket ball sized mound of not terribly threatening spines, and tiny green leaves with sprays of pink alyssum flowers in spring. As the plant ages it offers a slightly dishevelled, yet pleasant combination of dead twigs and living branches and oddly effective look" Robert Nord I love their appearance in a dry garden. Mine is quite a few years old and still small. An amazing image by Vladaig from Wikipedia in a botanic gardens