Greenway Biotech Inc. Gypsum Powder Calcium Sulfate to Improves Soil Drainage & Soil Water Relations- 100% Water Soluble Contains 97% Calcium Sulfate Dihydrate22.5% Calcium& 18% Sulfur (25

- TRANSFORM HEAVY CLAY SOIL: Solution grade powder instantly starts loosening compacted ground to improve drainage and aeration. This pH-neutral soil conditioner allows roots to penetrate deeper without altering soil chemistry. - SOLUTION GRADE PURITY: Contains 97% calcium sulfate dihydrate with 22.5% calcium and 18% sulfur. Fine professional-grade powder absorbs faster than chunky pellets - ideal for quick soil improvement and fertigation systems. - STOP BLOSSOM END ROT: The ultimate calcium boost for tomatoes, peppers, and fruit trees. Strengthens plant cell walls, enhances nutrient transport, and prevents common calcium deficiencies that reduce crop yield. - REPAIR SALT-DAMAGED YARDS: Effectively flushes excess sodium caused by winter de-icing, heavy fertilizers, or irrigation water. Reduces aluminum toxicity and creates a thriving environment for earthworms and beneficial microbes. - pH NEUTRAL ADVANTAGE: Unlike agricultural lime, gypsum adds calcium WITHOUT raising soil pH. Safe for alkaline soils, acid-loving plants like blueberries, and any garden where pH balance matters. - FAST-ACTING FORMULA: Fine powder dissolves and penetrates soil faster than pelletized gypsum. See drainage improvement in weeks, not months. Works immediately upon watering in. - MUSHROOM CULTIVATION READY: Professional-grade calcium sulfate improves substrate structure and water-holding capacity. Provides essential calcium for healthy mycelium development and increases yields in oyster, shiitake, and specialty mushrooms. - LAWN RENOVATION ESSENTIAL: Breaks up compacted turf, improves water infiltration, and reduces surface crusting. Apply after aeration for maximum penetration. Safe for all grass types including bermuda, fescue, and st. augustine. - COMMERCIAL & HOME USE: Trusted by professional farmers, greenhouse growers, and landscapers. Same solution grade formula scales from backyard vegetable beds to multi-acre agricultural operations. - TRUSTED QUALITY SINCE 1989: CDFA-registered and manufactured in California. Lab tested for purity and heavy metals. Family-owned Greenway Biotech has served growers for over 35 years.

Product description

Greenway Biotech Gypsum Powder (Calcium Sulfate)

Application Rate for Gypsum Powder

How to Apply Greenway Biotech Gypsum Powder as a Side Dressing

How to Apply Greenway Biotech Gypsum Powder as a Side Dressing

How to Apply Greenway Biotech Gypsum Powder as a Side Dressing

Our Core Values

Greenway Biotech Gypsum Powder Calcium Sulfate 100% Water Soluble is a high-quality, fine powder that is perfect for gardening and agriculture purposes. This product is made of pure calcium sulfate, making it 100% water-soluble and easy to absorb by plants. It can be used to improve soil structure and enhance the growth of plants, vegetables, and crops. This versatile powder is also ideal for making plaster and other building materials. With its fine texture and consistent composition, Gypsum Powder Calcium Sulfate 100% Water Soluble is a reliable and effective solution for all your gardening and agricultural needs. Order now and see the difference it can make in your plants' growth and health!

Plant fertilizers come in different shapes and sizes, and they bring different yields on your plants. The type of lawn fertilizer you choose for your plants will determine how much yields you get from it. Therefore, before using any soil conditioner, it is wise that you understand its value first. The gypsum for garden is among the best-known soil conditioners, and it helps farmers to improve their soil structure. This type of fertilizer contains all the nutrients required for your plants' growth.

Gypsum gets deep in the soil layers very quickly and provides the needed calcium and sulfur. It is, therefore, paramount if you are looking to improve the soil structure and drainage or if you want to eliminate the toxic effect of aluminum. Calcium improves soil structure and creates oxygen conditions essential to improve the soil and plants' health. This enhances the quality of the crops, hence, increasing yields.

Apply 5 to 10 pounds of Gypsum Powder per 100 sq. feet.

Mix product thoroughly into soil.

Water product thoroughly into soil.

We register all of our products through the California Department of Food and Agriculture (CDFA), ensuring the top quality possible.

CDFA is the highest regulated government agency and we not only meet their requirements, but exceed them. The heavy metal content of our products are either at zero or fall below amounts allowed by CDFA

We take pride in knowing we are a certified and minority owned small business.

Innovation is not exclusive to just one particular individual, but comes from those of all walks of life and we demonstrate this on a daily basis.

Our small business background is key to the trust we've built with our customers over the years and allows us to remain transparent while embracing community values.

We understand that we only have one Earth and it's up to us to take care of it!

We're doing our part by offering heavy metal free fertilizers that feed your plants the nutrients they need without harming the environment.

We even carry fertilizers suitable for Hydroponics to encourage fellow gardeners to practice cultivation methods that reduce water usage.

Meanwhile, our high quality, natural supplements encourage a shift away from synthetic medicine and towards a more holistic approach for personal wellness.

There's no better feeling than giving back to one's community and we decided the best way to do this was by creating our very own non-profit organization, Greenway Foundation.

One percent of all our sales are donated to Greenway Foundation to supply our students with adequate gardening supplies and inspire them to make healthy lifestyle choices by learning basic gardening practices.