Sudden Impact for Roses Liquid is Ideal for all flowering plants except natives and bare-rooted roses. Combines the best of both worlds. Its organic base provides a full range of plant nutrients in a slow release form, whilst the carefully selected water-soluble nutrients have been added to maximise the performance of each application. Plus the full range of secondary nutrients and micronutrients in a natural form along with boosted levels of Iron and Magnesium. Used in numerous botanic gardens and key rose gardens around Australia, including the International Rose Garden in S.A. Comes in 1.5 kg pack.