Sweet William (Dianthus barbatus 'Summer Sundae') dy-ANN-thus bar-BAT-us Genus:  Dianthus 'Summer Sundae' Sweet William is a nice mix of red, pink, and white flowers held in rounded groups at the tops of stems. Plants bloom from late spring to early summer. The flowers are lightly fragrant. Use in a cottage garden or border, or in containers. It flowers the first year from seed. Noteworthy Characteristics:  Biennial that flowers in the first year from seed. A mix of reds, pinks, and white. Lightly fragrant. Care:  Grow in full sun and well-drained, neutral to slightly alkaline soil. Will not tolerate standing water in winter. Organic mulches may encourage fungal diseases. Deadhead regularly. Provide a break from afternoon sun in hot climates. Propagation:  Sow seed in a cold frame from autumn to early spring, or sow in situ in summer to flower the following year. Problems:  Slugs, sow bugs, grasshoppers, chipmunks, squirrels, and deer commonly cause problems. Blister beetles are problematic in the West, while fungal diseases are prevalent in humid regions and poorly drained soils.

Overview

Height 1 ft. to 3 ft. Spread 6 in. to 12 in. Growth Pace Moderate Grower Light Full Sun Only Moisture Adaptable Maintenance Moderate Characteristics Attracts Butterflies, Fragrant Flowers, Showy Flowers Bloom Time Early Summer, Late Spring, Spring, Summer Flower Color Pink, Red, White Uses Beds and Borders, Cut Flower, Container Style Cottage Garden Seasonal Interest Spring Interest Type Annuals