One of the most widely grown small shrubs must be Golden Diosma, its grown as a filler in the garden, as a low hedge and in many commercial and council plantings. A plant that is so widely grown must have a few good points and this one certainly does.
The botanical name is Coleonema pulchrum ‘Aurea’ and it is simply known as Golden Diosma, and is readily available form retail nurseries also as dwarf golden diosma.
The strong points are the hardy drought tolerant nature, good foliage year round, attractive flowers and very easy to prune.
This is one of the most versatile low hedging plants available. For a good dense hedge, try spacing plants at around 80cm apart, the lower growing varieties at around 60cm.