Clematis Southern Cross

Clematis 'Southern Cross' is a cross-breeding between two compound hybrids of clematis obtained in Australia in 1992. It flowers from April to May, with small, cream-white scented stars measuring 2 to 5cm (1 to 2in). They consist of 4 pointed, tapering sepals and sulphur-yellow stamens. Without support, this evergreen climbing plant forms a tuft with a distinctive silhouette. Its narrow, strongly lanceolate foliage boasts a bright green colour. With a rather bushy habit and rapid growth, it is perfectly suited to small gardens. It works well as a ground cover plant, a trailing plant in a pot, or for covering a small trellis. This climbing clematis prefers moist but well-drained rich soil.

'Southern Cross' is the result of a crossbreeding between Clematis gentianoides and C. aristata. Clematis is a deciduous climber, belonging to the Ranunculaceae family. Like most of its cousins, it prefers light, deep, moist, and fertile soil that is preferably neutral. It enjoys a sunny or partially shaded position, with its base always in shade. It resists cold temperatures and is not afraid of frost, even if prolonged. However, it does not tolerate stagnant humidity, so the substrate must be well-drained and watering should be moderate (if necessary, during the first year). It can be grown in a container if the pot is large enough (minimum 60cm (24in) in diameter.

'Southern Cross' can reach a height of up to 2m (7ft) and a width of 1.5m (5ft). It belongs to Group 1, which means it flowers early. The woody stems from the previous year bear the spring flowers, so no pruning is necessary. The single star-shaped flowers transform into dry fruits with silvery feathery plumes that persist in winter, providing a notable decorative feature in late season. The leaves are borne on voluble petioles called tendrils that twine around their support.

Plant spring bulbs and a few ground cover perennials such as white or blue-flowering geraniums at its base and enjoy the spectacle with minimal maintenance. If you have a larger space, this vigorous clematis will weave its way through surrounding bushes and supports, adding height to a colourful border. Large-flowered repeat-flowering clematis are also the best companions for roses. 'Southern Cross' will perfectly complement compositions with its neutral colours. It will bring light to shaded areas.