Growing and Maintenance Tips

Dianthus grow best in full sun in loose, fertile well drained soil with a neutral to slightly alkaline pH and even moisture. Adding a little grit to the soil will improve drainage because excessive moisture can kill the plants. Dianthus can handle short periods of dryness but watering is necessary during drought. Dead heading regularly will encourage repeat bloom and keep the plants looking attractive. After the first flush of bloom cut all the spent flower stems down to encourage another flush of bloom later in the summer. The foliage is evergreen in our area so a spring trim is necessary to clean up winter damage