Gardenias: Growing Fragrant White Perfection in Australia

Climate and Site RequirementsGardenias thrive in subtropical and warm temperate conditions — coastal Queensland, northern NSW, and protected positions in Sydney and Adelaide. They need: warm summers (they resent cold nights below 15°C even in the growing season); acidic soil with pH 5.0–6.5 (they share the same requirements as camellias and azaleas); protection from frost (damaged below -3°C); and high humidity — they struggle in dry inland climates.The Yellowing Leaves ProblemYellow lea…