VPG Fertilome 4lb Magnesium Sulfate,21634 Brand Name: Hi-YieldSub Brand: Magnesium SulfateProduct Form: PowderProduct Type: Plant FoodContainer Size: 4 lb.Fertilizer Analysis (N-P-K): 0-0-0Indoor or Outdoor: OutdoorPlant Type: HydrangeasPackaging Type: BaggedCoverage Area: 400 sq. ft.Concentrated: NoCan be used as a foliage spray or soil treatmentDiscovery Regional Features Magnesium (Mg) - 9.5% (9.5% Water Soluble Magnesium (Mg)) Sulfur (S) - 12.5% (12.5% Combined Sulfur (S)) The product is not intended for nor recommended for Container Grown Plants. For use in Magnesium deficient plants, hydrangeas, palms Chlorosis USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.