They start out simply enough, as weirdly twisted bare stems in fancy floral arrangements. By the time the last flowers fade, the submerged parts of these bare stems develop roots and perhaps leaves. These now rooted cuttings then graduate into pots or gardens. Most curly willow, Salix matsudana ‘Tortuosa’, is therefore unplanned. It is rare from nurseries.
Mature trees should not get much taller than fifteen feet, with awkwardly irregular branch structure. Regular pruning and grooming eliminates congested and structurally deficient growth. Alternatively, pollarding or coppicing during winter dormancy promotes vigorous growth. Healthy trees can drop overburdened limbs, and might live for only twenty years.
Curly willow, which is also corkscrew willow, is popular more for distinctively curly stems than as a small deciduous shade tree. Specimens that provide such stems for cutting do not need to be very big. If cut and dried while dormant during winter, stems can not grow roots in water. Nor will they require plucking to remove their leaves, which are also curly.