Prostanthera phylicifolia, commonly known as spiked mint-bush, is a species of plant in the Lamiaceae family. The species was first formally described by Victorian Government Botanist Ferdinand von Mueller in 1858 in Fragmenta Phytographiae Australiae. The species occurs on hillsides and granite outcrops in heath and woodland in Queensland, New South Wales and Victoria in Australia. Prostanthera 'Poorinda Snow Queen' and 'Poorinda Ballerina', hybrid crosses of P. lasianthos and P. phylicifolia, are cultivated.