Twice as many blooms versus unfed. Why use Rose & Shrub Continuous Release Plant Food? Ideal for all roses whether in pots & containers or beds & borders. Only one application required for the entire season. Smart Release Feed for 6 Months The unique coating enables the feed to be continuously released when plants are actively growing. Unique mix of 5 nutrients Extra Magnesium for greener Leaves ...carefully balanced to provide roses with essential nutrients required for optimum growth and flowering.