This genus includes several popular species and hybrids, each with unique characteristics suitable for both garden displays and, in particular, cut flower arrangements. They are available as both annuals (year-round production) and biennials (early spring flowering).
Dianthus is the botanical name for the carnation, a classic cut flower known for its rich colors, delightful fragrance, and long vase life.
Dianthus caryophyllus (cut carnation) and Dianthus barbatus (sweet william) are particularly popular in bouquets and flower arrangements.
Sow the seeds shallowly in moist seed compost, cover lightly with soil or vermiculite, and keep at 18–20°C.
The seeds germinate on average 7 to 14 days after sowing at the correct temperature and humidity.
Soil that is too wet can cause root rot; check drainage and provide regular aeration.
Dianthus barbatus is usually a biennial plant, but some varieties are grown as annuals because they don't require cold to flower.
Examples of annual Dianthus barbatus include Barbienne, Barcelona, Amazon, and Sweet.
When do I harvest Dianthus barbatus for cut flower use?
