August through September is the time period our spring-flowering shrubs set flower buds. Therefore, watering, as needed, at this time can help with next spring’s bloom. Examples of spring-flowering shrubs include Forsythia, Flowering Quince, Almond, Beautybush, Deutzia, Pyracantha, Lilac, Mock Orange, Cotoneaster, Weigela, Viburnum and Witchhazel. (Ward Upham) photo credit – [thunderstruck]
