How to Prune carnation 'Devon Siskin'?
Deadhead regularly to prolong flowering

carnation 'Devon Siskin' · Dianthus 'Devon Siskin'
Also known as: carnation 'Merlin'
Grow in a well-drained, neutral to alkaline soil in full sun. Prefers a soil enriched with well-rotted manure or garden compost and an application of a balanced fertiliser in spring
Deadhead regularly to prolong flowering