Flowers are harvested during various stages of ‘ripeness’, depending on market demands. Gerbera and Chrysanthemum seem as though they are ‘further along’ when they are in a mixed bouquet with flowers such as Carnations or Tulips. Flowers that have been harvested while they were still in the ‘bud stage’, such as Rose, Gladioli or Eustoma, appear to need more nutrients in order to fully develop.