When harvesting is done in Gerbera flower?

Normally, Gerbera plants starts flowering in about 3 months after planting. Harvesting is done, when flowers completely open or when outer 2 to 3 rows of disc florets are perpendicular to the stalk. To improve the flower life, Flower stalk should be soaked in solution of Sodium hypochlorite (6 to 7 ml/liter of water) for about 5 hours.