What product is applied as a spray or dip to slow water loss from plants and extend vase life?

The product that is applied as a spray or dip to slow water loss from plants and extend vase life is an antitranspirant. Antitranspirants work by forming a film on the surface of the foliage and stems, which reduces transpiration—the process of water vapor loss from plant surfaces. By minimizing water loss, these products help maintain hydration within the plant, thereby prolonging freshness and the overall vase life of cut flowers or plants.

In contrast, fertilizer provides essential nutrients for plant growth, but does not address water loss directly. Rooting hormones are used to promote root formation in plant cuttings and are not related to reducing transpiration. Pest repellents are designed to protect plants from insects and diseases but do not aid in extending vase life through moisture retention. Therefore, antitranspirants are specifically formulated for the purpose of enhancing water retention and prolonging the life of cut plants.