Sue Says
Carnations are perennial, they will often start to flower in their second year. Although some have minimal flowers, its perfectly normal to only see foliage during the first year. Most Carnations are hardy as long as the drainage is good so there is no need to worry about taking them in for the winter. However if they are in containers then it might be worth moving the pot against the shelter of a wall, just to keep the worst of the weather off. The next year they should be mature enough to flower brilliantly!