Tall flat-topped asters is a genus of flowering plants that require moderate to full sunlight and regular watering, but prefer well-drained soil. They enjoy mild to warm temperatures, but can tolerate cool climates. Common challenges include leaf spots, mildew, and aphids, more prevalent in high humidity. These plants, however, are quite resilient to disease. Seasonal care mainly involves preparing the plant for winter by reducing watering and ensuring protection from frost. Spring and summer require regular pruning and monitoring for pests.