About Crystal Green®

Crystal Green is the world's first slow-release, renewable and environmentally safe fertilizer. Crystal Green is the only slow-release fertilizer with a combination of nitrogen, phosphorus and magnesium (5-28-0 +10% Mg).

Renewable & Environmentally Friendly

Until now, the key ingredient in fertilizers was a non-renewable and dwindling resource. Unlike traditional phosphorus fertilizer which is mined and the production of which is highly energy consuming and polluting to the environment, Crystal Green is harvested from a previously untapped source of phosphorus - wastewater. This process makes Crystal Green a sustainable and renewable source of phosphorus, and ensures stability of supply and price.

Proven Effective

Crystal Green has been successfully proven safe in industry and university trials, and to have commercial benefits for applications in turf, nursery, and specialty agriculture industries. The product was developed by Ostara Nutrient Recovery Technologies Inc. and is being marketed through national and regional distributors in North America.

Naturally Slow Release

Crystal Green is a highly pure crystalline compound that is a slow-release form of nitrogen, phosphorus and magnesium. The Crystal Green slow release fertilizer prill takes 8-9 months to dissolve, simultaneously releasing each of its elements. This is because Crystal Green is a pure, hard crystal prill that slowly breaks down, so there is no phosphorus run-off into adjacent waterways or crop burn. All the nutrients remain in the soil (reducing phosphorus applications by 75 per cent), which is better for the environment, resulting in improved plant and turf performance, greener plants and turf, and significant cost and time savings.

Manufactured in a Size that Suits Your Needs

Advanced technology allows Crystal Green to be manufactured in sizes from 50 - 240 SGN making it well-suited for a wide range of blending and growing requirements.

Easy to Handle

Hard and dust-free particles make this product user-friendly and easy to handle. Crystal Green is not chemically coated and is consistent in size and shape.

  • blendable with all fertilizer products
  • hard, crystalline prill does not break down during blending and application
  • reduced coating failures and improved plant and turf performance with no plant burns and turf blotching.

Purity

Crystal Green is a highly pure compound of phosphorus, magnesium, and ammonia. Independent lab results have proven that Crystal Green is far below federal regulatory limits for heavy metals or pathogens. Crystal Green is actually cleaner than commercially available phosphorus that is derived from phosphate rock.

Five Reasons to Choose Crystal Green:

  1. New, Renewable Source of Phosphorus
  2. Right-Sized to Suit Your Custom Needs
  3. Only Slow Release Magnesium Fertilizer on the Market
  4. Clean, Green and Safe
  5. Tested and Proven