Fertilizer symbol Legend



Please see our fertilizer chart for an explanation about the 3 numbers found on fertilizer bags and boxes.
For example, our popular All Purpose Mix has the numbers 4-6-2 on the front. 
This is called the N-P-K Ratio and the numbers on the label represent the percentage of the three primary macronutrients:
Nitrogen (N)
Phosphorus (P)
Potassium (K)
 Read More here

Fertilizer Icons - Key



Organic Materials Review Institute, OMRI Listed for Organic Use Icon

OMRI, The Organic Materials Review Institute independently reviews products and lists those that are suitable for use in organic crop production under the USDA National Organic Program Rule. Click on the icon to learn more.


OIM, The Organic Input Materials Program registers fertilizing materials to be used in organic crop and food production and comply with the requirements of the California Fertilizing Materials Law and Regulations and the USDA National Organic Program Standards. Click on the icon to learn more.


Contains Beneficial Microbes. ​These tiny fungi, called mycorrhizal fungi, or MYCO for short, naturally colonize the roots of the plant. They improve nutrient and water uptake, increase plant growth and crop yields, as well as helping to  decrease transplant and drought stress. Click on the icon to learn more.