Power Roots is an organic root stimulator. This stimulator is used in the growth phase and the initial weeks of the flowering phase. Power Roots stimulates root growth and increases the resistance of the plant. It works quickly, is economical and is absorbed by the plant virtually immediately. Power Roots ensures the development of strong plants. .hb-qff .hb-qff-row { display: grid; grid-template-columns: 140px 1fr; gap: 14px; align-items: baseline; margin: 0 0 10px; } .hb-qff .hb-qff-row:last-child { margin-bottom: 0; } .hb-qff dt, .hb-qff dd { margin: 0; } @media (max-width: 480px) { .hb-qff .hb-qff-row { grid-template-columns: 1fr; gap: 3px; } } Quick Feed Facts THE HYDRO BROS Dilution / Dose 1ml per litre of water (1:1,000), used at every watering. When To Use Vegetative growth phase through to week 4 of flowering, then stop. Substrate Fit All substrates. Not suitable for hydroponic recirculating systems (NFT, DWC, aeroponics). Grower Notes Growing in a recirculating hydro system? Use Plagron Hydro Roots instead.