Last week my Mrs picked up a bunch of lovely frilled Dianthus that was on offer in a supermarket. I noticed a few offsets along the stems so removed them and…
They are fully to half hardy, and will need an open sunny position with well drained slightly alkaline soil. The tall species of carnations and pinks have a loose habit and will need staking. Dead-heading of repeat-flowering types is beneficial.
You can propagate the border carnations by layering in late summer. Other named forms can be increased by softwood cuttings in late spring and the species by seed at any time.
Pests, diseases or disorders
They are susceptible to rust, slugs, red spider mite and virus infection through aphids, but many cultivars are available from virus free stock.