Organic plant food rich in calcium and magnesium and naturally contains nutrients plants need. High calcium fertilizers have been shown to benefit bulbs. Also helps to inhibit blossom end rot. Apply in early spring as soon as soil can be worked.Ingredients: Derived From Crab Scrap And Crab Shell. Nitrogen Derived From Crab Shell. L x W x H: 6.5 x 3.15 x 12