1: Avoid over-watering gardenias to prevent root rot.

2: Choose a well-draining soil to prevent waterlogged roots.

3: Plant gardenias in a location with partial sunlight.

4: Avoid excessive fertilization which can harm gardenias.

5: Prune gardenias after flowering to maintain shape.

6: Protect gardenias from frost during the winter months.

7: Avoid planting gardenias too close together to prevent competition for nutrients.

8: Monitor for pests such as scale insects and aphids.

9: Avoid using excessive amounts of pesticides on gardenias.