Gomphostigma virgatum Otterbush This evergreen shrub grows to 1 x 1m and is both frost resistant and fast growing. It is happiest in the sun and its grey foliage makes a pleasant contrast in the garden. The delicate, fragrant white flowers occur all year and they attract butterflies. As it grows along our rivers it is useful for wetlands or near a water feaature. It is medicinally used to perk up tired people! The name is derived from the Greek gomphos=club, which refers to the club shaped stigma.