Caring For Your Gardenias Plant gardenias where they will get morning sun and afternoon shade. Good air circulation is a must. Gardenias prefer moist, acid soil with good drainage & lots of organic matter. When planting, set the root-ball about 1" higher than the surrounding soil. Gently taper the soil up to the top of the exposed root-ball. Mulch. Pests (whiteflies, scales, & mealybugs). can be a problem. Control by applying a light horticultural oil to prevent sooty mold.
They call her the Queen of fragrant flowers. Gardenia (Gardenia augusta) is a popular evergreen shrub that produces white rose-shape flowers throughout the warm months. You can grow gardenias in your garden or in your home as a house plant if you live in a cold-winter climates. Plant your gardenia in the shade in moist, well-drained soil.