4/14/2025 - By Dr. Tom Reed

Watermelon season is in full swing in Florida’s approximately 30,000 acres of production. Across the state, different regions are in various stages of the growing season, and fruit will be harvested into summer. This time of year, is critical for growers to apply the right products and maintain their growing media to ensure safe and successful yields over the next few months, and for years watermelon growers in the Southeast US have utilized POLYON® controlled-release fertilizer (CRF) to do just that.

POLYON® Fertilizer and Watermelon

When it comes to CRFs, growers trust POLYON® to improve efficiency while producing great yields in both quantity and quality. Harrell’s CRF is typically applied in a band before bed formation, with the blend being customized to provide full or partial-season nutrition. This allows for greater in-season supplementation as desired.

Harrell’s POLYON® fertilizer can go as far as being the total fertilizer program for a watermelon grower, or even the primary source of nutrients, allowing growers options for nutrient supplementation throughout the season.

Benefits of POLYON® Fertilizer

POLYON® fertilizer's benefits to growers include increased operational productivity, nutrient efficiency, and reduced environmental impact compared to traditional fertilizer sources. Harrell's POLYON® CRF blends are customized for each grower’s needs providing a predictable rate of nutrients under specified conditions, allowing you to specifically control nutrient application and availability from a single application.

Research on POLYON® and Watermelon

The effects of POLYON® fertilizer on watermelon production are evident in the research, as you can see in these recent grower trials conducted in north Florida. Please be sure to check back to our Harrell's blog page for more updates and to read all about the benefits that POLYON® fertilizer has for your crops.

Connect with Your Harrell’s Rep

Harrell's POLYON® fertilizer blends are customized to provide nutrients over time at a predictable rate under specified conditions. To find the right POLYON® controlled-release fertilizer product for you, reach out to your Harrell's Rep.