aromatic-shrub Australian Australian-native-flora blooms blossom bracts bush calyces calyx color colored colors colour coloured colours display displayed evergreen flora flower flowering flowers foliage full-bloom hardy Lamiaceae large-flowers magnificent-mint-bush magnificent-prostanthera native perennial prostanthera prostanthera-magnifica purple purplish-red-calyces sepals spreading-shrub two-tone-purple Western-Australian-native-flora wild wildflower wildflowers adaçay anti-fungal antiseptic aromatic broadleaf-sage common-sage culinary culinary-sage deodorant deodorising digestive-properties downy garden-sage green health-benefits healthy herb herbaceous-perennial herbal-extracts kitchen-sage leaves maramia medicinal mint-family pharmacological-properties plant purple-sage sage salvia salvia-leucantha salvia-officinalis shrub spice spikes subshrub tonic true-sage velour-white velvety vitamin-rich white wrinkled