Carnation flower is a available all year. Each stem comes with one flower Each flower head is about 2” large They are shipped in 25 stem bunches Suggested arrival date is Tuesday prior to a weekend event. They will arrive very tight and should be cut and put in warm water immediately. If you have a weekend event and still having trouble getting them to open, change water to hot, put plastic bag over the bucket. The steam from hot water will assist in opening them. Stem length is about 21” – 28” it can vary depending on farm used to fill order. With proper care these flowers can last about two weeks. If for any reason this product is unable to ship we recommend subbing Mini Carnations, Roses, Gerbera Daisy, Cremon mums, or Cushion mums.