Description Grevillea 'Canberra Gem' is a cultivated hybrid from Grevillea juniperina and Grevillea rosmarinifolia raised in the early 1960's by Mr. P Moore at Yarralumla Government Nursery in Canberra. It is an erect, moderately dense shrub with slender ascending branches. The leaves are 15mm - 30mm long and 0.5mm - 1mm wide. Produces pinkish red flowers in winter, spring, summer.