Controlled release fertilizer

Ensure reliable, exceptional nutrient release with Osmocote controlled release fertilizers

Sixty years ago, coated controlled released fertilizers didn’t exist. Then Osmocote, the world’s first controlled-release fertilizer (CRF), revolutionized the market. Today, Osmocote remains the world’s leading CRF—not because it was the first but because it’s the best.

When you choose a coated fertilizer for your commercial growing operation, it needs to deliver on its promise and do what you expect. Choosing Osmocote coated fertilizers means your crops benefit from years of cutting-edge research, development, and evolution for superior controlled release fertilizer results.

With predictable, consistent, and grower-proven performance, Osmocote controlled release fertilizers deliver the nutrients your plants need exactly when they need them. All backed by the highest quality ingredients and an expanding product range to meet your specific needs, Osmocote ensures you always get the most from your CRF investment.

Continuously proven and improved
Since Osmocote controlled release fertilizer first came on the market, this game-changing technology has been continuously trialed, refined, and improved as new research and technologies became available. Today’s Osmocote products pack an abundance of technology inside a resin-coated NPK nutrient core that reliably delivers vital nutrition throughout the growth cycle of the plant.

Osmocote remains the most scientifically advanced and widely used controlled release fertilizer in the world, with a diverse product range known and trusted by professional growers worldwide. 

How does it work? After initial irrigation, water penetrates the semi-permeable resin coating and starts to dissolve the nutrients. Once partially dissolved, the nutrient release begins. But, with Osmocote, water is not the regulating factor.

Instead, the nutrient release is regulated by ambient temperature and self-synchronized to the plant’s growth cycle. That means that exactly the right amount of nutrients get released—at exactly the right time.

Healthy growth means healthy profit
The costs associated with fertilization programs are a major consideration every grower faces. Over the course of a season, Osmocote product lines like those that follow help minimize labor expenses while producing superior plant material that demands a higher point-of-sale price:

Osmocote – Consisting of 100% resin-coated NPK, Osmocote offers specialized formulations for every application, whether you need short- or long-term feeding. Reliable and consistent nutrient release ensures superior performance, delivering as-needed nutrition throughout the growth cycle.

Excellent as base feed for greenhouse, nursery, and landscape plants or as a topdressing for hanging baskets and beds, Osmocote is available in longevities ranging from three to 16 months. Use it in conjunction with a water-soluble fertilizer or custom-blended with other nutrient packages to create the exact product to fit your needs.

Osmocote Blend – Customized blends of 100% resin-coated homogenous cores, with specialized nutrient and micronutrient packages, meet even your most exacting requirements. Five technologies each offer their own set of unique benefits, ensuring the right product to optimize your investment and maximize growth.

From precision nutrient release parameters to topdressing blends that stay in place even when pots get tipped over, Osmocote Blends capitalize on the most advanced science available to give you the customized solutions you desire. Ideal for greenhouse and nursery container plants, foliage production, and landscaping, use these blends alone or with water-soluble fertilizers.

Osmocote Plus – With 100% resin-coated homogenous cores, Osmocote Plus is the go-to fertilizer for container plants and soilless growing media. Ideal when growing a wide range of plants, including sensitive varieties, this premium all-in-one mix of NPK plus essential micronutrients meets specific feeding cycles with unmatched efficiency.

Longevities range from three to 14 months, with special formulations available for extra nutrition during early and late stages of plant development. Effective alone or with a water-soluble fertilizer, Osmocote Plus can be incorporated into growing media or surface-applied to containers.

Osmocote Special Products – Formulated for specialized applications, 100% resin-coated homogenous cores contain NPK plus essential micronutrients designed to meet the needs of unique plant varieties and production spans, such as blooming container plants and blue hydrangeas. Use these products alone or along with water-soluble fertilizers.

Benefits of Osmocote controlled-release fertilizers
Using Osmocote controlled release fertilizers offers your growing operation multiple benefits to help you make the most of your investment. Benefits include the following:

• Controlled nutrient delivery promotes compact, uniform growth and rich color
• Specialized formulations for every application extend vitality beyond retail
• Fewer fertilizer applications are needed, resulting in lower labor costs
• Reduced nutrient loss translates to higher efficiency and ROI
• Reduced volatilization, denitrification, and leaching minimize environmental impact
• Gradual nutrient supply ensures plants experience less disease pressure
• Ongoing guidance and support from the ICL Growing Solutions team of Territory Managers helps ensure your success

With Osmocote controlled released fertilizers, you and your customers can experience superior fertilizer and plant performance driven by the world’s most advanced, most trusted CRF.

Reach out to your ICL Territory Manager for personalized guidance and recommendations on how Osmocote controlled release fertilizers can help grow your plants and your business.