Carnations may be susceptible to pests like aphids and spider mites. Proper hygiene and vigilant inspection help prevent infestations. Fungal diseases can be controlled by providing good air circulation and avoiding overhead watering. Keep an eye out for common pests like aphids or thrips and treat as needed. Carnation plants are popular ornamental flowers known for their charming and fragrant blooms. To buy carnation plants online Australia, you can explore various options. Online plant retailers, local nurseries and garden centres are excellent places to start your search.