Bone Meal 4-12-0 by Espoma 

Bone Meal is a by-product from meat rendering plants. It consists of ground animal bones that have been cooked and sterilized, and then ground into a meal. Espoma® Bone Meal is the finest bone meal available. It provides a slow, steady feeding of phosphorus and nitrogen, two primary nutrients required by all plants. Bone meal helps develop sturdy root systems and stimulates plant growth. Espoma® Bone Meal is an ideal supplement to fertilizers for bulbs, flowers, and roses. It is all natural and approved for organic gardening.

Directions for using Bone Meal
Bone Meal On Lawns:
Apply in spring, summer, or fall at the rate of 5 lbs. per 100 square feet.

Bone Meal For Bulbs & Gardens:
Apply at the rate of 10 lbs. per 100 square feet working well into soil.

Bone Meal for Shrubs & Trees:
Apply 1 or 2 lbs. to shrub, tree, or bush depending upon size. Distribute under entire spread of shrub or tree raking well into soil. Do not use around plants that require an acidic soil without a soil test to determine that soil pH is too low.

Bone Meal for Potted Plants:
Apply 2 ounces or about 1 heaping tablespoonful per pot; work into soil.