E. B. Stone Blood Meal is a long lasting source of natural organic nitrogen which is readily available to plants. It will continue to release nitrogen gradually throughout the growing season. Blood Meal is ideal for use on most garden plants to encourage growth and improve leaf color. It is suitable for use on fast growing plants throughout the garden including vegetables, perennials, annuals, roses, shrubs and trees. E. B. Stone Blood Meal may also be used as a source of nitrogen in compost piles and is used by many gardeners to repel animal pests like squirrels and deer from the garden.