It's unfortunate that there aren't any instructions on the label of your product. Seaweed products are generally pretty mild and I've never had any problems with it burning roots. I use Maxicrop Liquid Seaweed at 1 ounce per gallon every two weeks. That's the dosage recommended on the label. The lady at our local orchid supply store says that many growers us it at 1/2 ounce per gallon.