USE AT MOST 1/2 STRENGTH!!!! DONT READ THE BOX WHICH CLAIMS WONT BURN PLANTS IF USED AS ADVISED! I burnt a plant to a crisp in less than a week using just slightly less than the perscribed amount. NOW Im using 1/2 strength and only use it every third time I water (every 7-10 days) and Im having great results this time around. The product works, but be very careful and WATCH your plants!