Miracle-Gro Rose & Shrub Concentrated Plant Food 800ml delivers visible results in just 7 days by promoting root development, growth, and overall plant health. Enriched with Humifirst, a rich source of organic matter, it enhances plant resistance to environmental stress while boosting yield. This fast-acting liquid feed provides nutrients that nourish your roses and shrubs effectively, with benefits lasting up to two weeks, helping your plants thrive with expert care.