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How to Grow Dianthus

Annual, Biennials, Perennials

Dianthus is a group of flowers with hundreds of family members. Among the more well known members are Carnations, Sweet William, and Pinks. Members of the Dianthus family include annuals, biennials, and perennials. They originated in Southern Europe, the Mediterranean region, and China. If you are a flower grower, chances are you have a few members of the Dianthus family in your home garden.

Dianthus have bright, fragrant blooms, with fringed, ragged edges. Flowers are 1" to 1 1/2" diameter.  Most varieties will grow 18" to 24", with a few varieties growing up to three feet. Dianthus are a popular choice for both flowerbeds and rock gardens.

Easy to grow, Dianthus also are long lasting as cut flowers.

Plant Propagation:

Grow Dianthus from seed. You can directly seeded them into your flower garden. Sow  Dianthus seeds after the soil begins to warm in the spring. For early blooms, we recommend an indoor start, six to eight weeks before the last frost in your area.

Sow seeds early in the season, and cover lightly with soil. Space seeds or seedlings 10-12" apart. They will tolerate a little crowding, and look good in clumps or groups.

Perennial varieties of Dianthus can be propagated by cuttings or plant division. Separating clumps every few years, helps to promote bigger and healthier plants.

How to Grow Dianthus Plants:

Grow Dianthus plants in full sun. They will thrive in rich to average soils. The soil needs to be well draining.

Dianthus prefers slightly moist to dry soil. Water plants during dry periods, once or twice per week. Add a general purpose fertilizer once a month.

After the flowers have died, cut the stems to ground level.

Insect and Disease:

Insect and disease problems are infrequent. Mildew problems may occur in warm, humid weather. If insect or disease problems occur, treat early insecticide or fungicide as needed.

More Information:

Dianthus Plants

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