

For crop–specific recommendations based on water quality, take a minute to go through the patent–pending Peters® A–B–C Selection System™.
You will find all Peters products with their A–B–C designation and water quality match here:
Based on decades of research on water soluble fertilizers, Scotts® has created a groundbreaking new system for Peters Excel® and Peters Professional® fertilizers. Each product is now categorized as A, B, or C – match them with your water type and crop, and it’s easy to give your plants just what they need.
A – “All–Purpose” products have been tested throughout North America and proven to provide a constant liquid feed of essential nutrition in one convenient formulation. Each has been tested and proven to work over a broad range of plant types, eliminating the hassle of multiple crop–specific formulations.
B – “Base” formulations are tried and true foundations for excellent plant nutrition. They can be rotated or sometimes combined with one of the C – “Customizing” components to fit a specific nutritional need. Plus, the best combinations have already been identified for you based on water quality and crop type.
Your plants will still see the benefits of superior ingredients, the premium M-77® nutrition package and all the technological advancements that have made Peters® the brand to count on. However, you have the added benefit of knowing your water soluble fertilizer matches your water type.