This small evergreen tree/shrub/creeper is frost resistant, water wise and fast growing in the sun, semi-shade or deep shade. The yellow flowers occur in summer, and then become fruit which attracts fruit eating birds. It is also used for nesting sites. It is the larval host plant for the Forest-king Emperor and the Rufous – winged Elfin butterflies. it’s most important use is as a security barrier. The Cat Thorn has hooked thorns which make it an effective barrier. The leaves are used medicinally and it is browsed by game. The name is derived from the Latin scutum=a shield. this refers to the calyx that surrounds the fruit like a shield.