Chlorine is a very effective bactericide but dissipates quickly from solution unless provided in a slow-release form. Both are highly effective bactericides for floral preservation. These chlorine compounds will bleach stems and leaves immersed in the preservative solution. They may also injure outer petals. These disadvantages are outweighed by the superior bactericidal effects of these materials.
Floral preservatives are very effective in maintaining quality and extending longevity.
On the average, they can double the vase life of cut flowers when compared to water. Snapdragons with a life expectancy of five to six days last up to twelve days in preservatives. Flower stems should be cut with a sharp knife or shears to prevent crushing of stem and water-conduction cells. The cut flowers should be placed in a preservative solution as soon as possible to prevent wilting. The flowers should not be allowed to be out of water while they are waiting to be transferred to the storage or grading rooms.