Ostara is today’s best-in-class global innovator and producer of the most efficient phosphate fertilizers on the market. Our products release nutrients naturally in response to plant demand for unmatched nutrient availability and environmental benefits.
Ostara’s Crystal Green sustainable fertilizer deliver phosphorus, magnesium and nitrogen in a highly efficient granule with season-long availability to maximize yield with potential for reduced application rates.
Ostara provides products and technology for a more sustainable future. With high-efficiency fertilizers and phosphorus management solutions, less phosphorus is released into the environment.
Crystal Green fertilizers are proudly manufactured in the United States. Our facility in St. Louis gives us the ability to easily ship products across North America to growers wanting the most efficient phosphate fertilizer available.