GOLD'n GRO 6-3-9+4% Sulfur Two-Pak Liquid Fertilizer Concentrate Award Winning Green Technology For all indoor houseplants; African Violets, Orchids and more. For most outdoor garden plants; Roses, Flowers, Tomatoes, Vegetables and more. Double strength! Half as much goes twice as far. Top Quality! Top Performance! Super concentrate - one 8 ounce bottle makes 32 gallons of fertilizer! Buy 2 or more Two-Paks; save 10% or more on shipping!