Organic fertilizers fortify the soil and are made of naturally occurring plant and animal materials. They do not include any harmful, chemical, or synthetic materials.

Organic fertilizers are formulated from mined rock minerals, natural animal and plant materials.
You’ll find ingredients like manure, guano, dried and powdered blood, ground bone, crushed shells, finely pulverized fish, phosphate rock, and wood.

Organic fertilizers nourish the soil and microbial life within it, which is broken down by microorganisms to make nutrients available to plants.
By using organic granular fertilizers and organic liquid fertilizers, you can rest assured that your garden and lawn are safe for the environment, your family, and your pets.

From a plant perspective, both sources can supply the nutrients needed.  There are pros and cons with both types of fertilizers. Organic fertilizers are often lower in analysis (less nitrogen, phosphorus, potassium, etc.) so they are less likely to cause injury due to over application.  Yet, this lower analysis may mean you may need to apply more product in poor soils.  Organic fertilizers may not supply specific nutrients, while synthetic formulations can include many macro- and micro-nutrients.  However, organic fertilizers, like composted manures, can also improve soil quality over time, unlike synthetic fertilizers. Many gardeners will use both organic and synthetic fertilizers, depending on the situation.  For example, some gardeners will add composted manures to the vegetable garden in fall or early spring to improve soils and then still add granular synthetic fertilizers as a top dressing after planting for long-season vegetables like tomatoes.

There is no expiry date of chemical fertilizers. However, in case of imported Fertilizers, the container (bag) has. indication regarding month and year of Manufacture/import.