What is the relationship between flower bud differentiation and water in ornamental plants?

Moderate drought helps promote flower bud differentiation in ornamental plants. Withholding water appropriately from the plants before the flower bud differentiation stage, watering less or stopping watering a few times, can inhibit or slow down the growth of stems and leaves and advance and promote the formation and development of flower buds.

Flower color is closely related to water. Generally, when water is lacking, flower color becomes more intense. For example, white and pale pink varieties of rose (Rosa spp.) often turn creamy yellow or pale pink when water is insufficient. The same happens with chrysanthemum (Chrysanthemum morifolium): when water is lacking, more pigment is formed, so the color becomes more intense.