Grow Dianthus for Fragrant Flowers and Fancy Foliage
Dianthus prefers full sun but may tolerate partial shade. Airflow and soil drainage are essential.
Choose the Right Location
Dianthus likes pH 6.5–7.0 soil. Improve soil drainage and fertility with compost or well-rotted manure.
Soil Preparation
Plant Dianthus in spring or early fall after the last frost. Sow seeds inside 6-8 weeks before the last frost or in the garden after the soil warms.
Planting Time
Space plants 8-12 inches apart for airflow and spreading growth.
Spacing
Water Dianthus regularly to avoid waterlogging the soil. The soil should dry somewhat between waterings to prevent root rot.
Watering
In early spring, fertilize Dianthus with a balanced, all-purpose fertilizer. Avoid over-fertilizing since nitrogen might promote foliage growth over blossoms.
Fertilizing
Regularly remove spent blooms to promote flowering and tidy the plant.
Staking
After the initial bloom, prune the plants to induce a second bloom. Trim dead or damaged leaves to keep plants healthy.
Pruning
Check for aphids, spider mites, and snails. For aphids and spider mites, use insecticidal soap or neem oil; for snails, hand-pick or use organic baits.
Pests
Dianthus can get powdery mildew and root rot. Avoid overhead watering and improve plant airflow to reduce these difficulties.