Miracle-Gro Gro All Purpose Concentrated Liquid Plant Food is the superfood for your plants helping you grow beautiful healthy plants with noticeably more blooms. It contains a unique bio-stimulant Humifirst which is rich in organic matter to stimulate growth yield and root formation and it improves plants resistance to environmental stresses. Miracle-Gro is guaranteed to grow plants twice as big as unfed plants and plants will be visibly healthier in just 7 days. It can be applied as both a root and foliage feed and for stunning results feed every 2 weeks from March to September.