(Pink, Sweet william, Carnation)
Caryophyllaceae
The commonly encountered garden varieties are European plants of garden antiquity grown for their attractive, often perfumed, flowers which pick well. They are on the whole easily grown but demand excellent drainage and plenty of sun and are ideally suited to poor, dryer, well drained, alkaline soils. They are often encountered overgrown and root bound, tucked away in the shade, to which they are intolerant, and once purchased are good naturedly smothered with too much "good" garden practice.
Pinks are known to all by name, which they lent to the colour, if not in person. Classic perennials of English cottage gardens. They have extensive root systems and most varieties offered are quite hardy in Perth with a good drink once a week over summer. They invariably have narrow, glaucous foliage resistant to dry air and high light intensity.
Sweet williams (Dianthus barbatus) are biennials that will often persist for several years and typically have tall stems bearing clusters of small fringed flowers. They have broader leaves and require a bit softer conditions than the Pinks. The Nigrescens group seem the hardiest of the bunch and can become quite shrubby, potted colour varieties, often sold by the punnet, are worth growing but usually amount to little more than tender annuals.
Carnations (Dianthus caryophyllus). Those developed for the cut flower market are mostly ugly plants needing support and are best left to the dedicated enthusiast or florist. Better garden plants are the seldom seen border carnations, they have the same beautiful flowers of the florist types but are less gawky, don't need staking, are often perfumed and are almost as hardy as the pinks.