Company Tools Locations Team Harrells myHarrells PRODUCTS MARKETS SALES TEAM EDUCATION BLOG CONTACT Previous Custom-blended granular fertilizers for your specific needs. Previous Next Each Harrell’s Profertilizer® blend is double or triple screened for maximum quality. We provide only the finest blends, made right here in the U.S.A. CustoMix® Using our proprietary CustoMix® software, we formulate custom-blended fertilizer solutions that deliver the ideal release rates and nutrients to address your unique growing needs. POLYON® Controlled-Release Fertilizer POLYON® controlled-release fertilizer with its trademarked green color is backed by years of research, and has has been the market leader in the turf and ornamental markets for decades. Quality Raw Materials Because off-the-shelf is never on the mark, we maintain the largest inventory of the highest quality homogeneous substrates and professional raw materials available in the industry. Combine and Save Time Have you thought about combining your fertilizer and preemergent into one application? Let your fertilizer do the extra work so you don't have to. Read More Popular Products Customers like you use Profertilizer products like these. 16-6-11 + Micros 5-6 Mo. 5-6 month homogenous NPK and minors Polyon fertilizer. POLYON® Controlled-Release Fertilizers, with their trademarked GREEN color, give a professional all the things you want from a fertility program: consistent, predictable feeding that lasts for months with one application. Read more 0-0-50 Micro POLYON® SOP 100% PCSOP Micro 50 Lb. POLYON® Controlled-Release Fertilizers, with their trademarked GREEN color, give a professional all the things you want from a fertility program: consistent, predictable feeding that lasts for months with one application. Read more 12-6-8, H1531 Leonard's 50 Lb Custom-blended Harrell’s Profertilizer® starts with the latest advanced release technologies - some with POLYON® Controlled-Release Fertilizer -, followed by up to 175 ingredient options, double and triple-screened for the finest blends. Harrell's technicians sample every batch and supervise each bag of your order for quality control ensuring the best product. Consistent prill size, Harrell's Profertilizer® will spread evenly - with no streaking - for consistent growth all season long. Read more 21-0-20 98% PCU 41 82% PCSOP Mini Season long predictability and consistency from Polyon nitrogen and potassium. The use of mini particle size ensures uniform nutrient distribution, and performance. POLYON nitrogen and potassium result in very low burn potential. Read more 25-0-12 85% PCU44 Reg Season long combination of Polyon and soluble nitrogen. This predictable, consistent, and economical blend is suitable for golf, sports turf, and turf and landscape. Read more PRODUCTS Adjuvants & Colorants Liquid Foliar Nutritionals Controlled-Release Fertilizer Granular Fertilizer Peat Water Soluble Fertilizer Wetting Agents Plant Protectants Early Order Programs Balanced Approach BASF Bayer Syngenta Nufarm FMC PBI Gordon SePRO Corteva COMPANY Company Philosophy Press Releases Core Values Our Why Four Pillars History Executive Team ESOP Careers Contact Team Harrell's TOOLS Spreader Calculator Foliar Calculator Sales Representatives myHarrell’s Customer Portal Harrell's Credit Application (PDF) Harrell's Credit Application - Spanish (PDF) Client Info Sheet (PDF) LOCATIONS Corporate Office Atlanta, GA Avon Park, FL Birmingham, AL Boston, MA Charlotte, NC Chattanooga, TN Chicago, IL Dallas, TX Denver, CO Detroit, MI Hartford, CT Houston, TX FOLLOW US Indianapolis, IN Lakeland, FL Los Angeles, CA Miami, FL Oklahoma City, OK Palm Springs, CA Philadelphia, PA Phoenix, AZ Pittsburgh, PA San Antonio, TX San Diego, CA San Jose, CA © 2021 - Harrell's LLC