Earth ScienceFast Acting Gypsum—5 lb— Soil Conditioner Adds Calcium, Repairs Salt Damage & Root Growth with Nutri-Bond Runoff Reduction Technology

Soil Amendment That Actually Delivers on Clay ImprovementAfter battling compacted clay soil in my yard for years, this Earth Science gypsum has made noticeable improvements that justify the investment. The "fast acting" claim proves accurate - within weeks of application, I could see visible differences in water penetration and soil workability.The finely ground pelletized format strikes an excellent balance between effectiveness and ease of application. Unlike powdered gypsum that creates dust clouds or coarse products that take forever to break down, these pellets spread evenly through standard fertilizer spreaders while dissolving quickly when watered.Clay loosening performance is genuinely impressive. Areas where water previously pooled on the surface now absorb irrigation effectively. The soil that once required a pickaxe to dig has become workable with standard garden tools. Root development in newly planted areas appears significantly improved compared to untreated sections.The Nutri-Bond technology seems to work as advertised for reducing nutrient runoff. My established plants show better color and vigor, likely due to improved nutrient retention in the root zone. The calcium addition has noticeably helped my tomatoes with blossom-end rot issues that plagued previous seasons.Safety for immediate use is a major advantage over many soil amendments. Being able to apply and have kids and pets back on the lawn immediately eliminates the inconvenience factor that often delays soil improvement projects.Application through standard spreaders works smoothly without clogging or uneven distribution. The pellets maintain their integrity during spreading but break down appropriately when watered, providing good control over application rates.Results become apparent relatively quickly for a soil amendment, though patience is still required. Initial improvements in water penetration are visible within a few weeks, while structural soil changes continue developing over several months.The product works effectively across different grass types without causing damage or discoloration, making it suitable for mixed landscaping areas.Cost per treated area is reasonable considering the long-term soil improvement benefits, though treating large areas requires significant product quantities.Bottom Line: Effective soil conditioner that delivers measurable improvements in clay soil workability and plant health. The combination of fast action and easy application makes this a practical solution for problematic soil conditions.

A couple years ago, used 4 bags on my half acre. Immediately it flocculated the hard clay, which originally was so hard I could not dig into it with a shovel. This product worked so well the yard became muddy in some areas—good to follow up in bare spots by spreading seeds for ground cover or wildflower meadow. I’m now able to grow more than dandelions on this property thanks to this gypsum.

I am trying to improve soil where clay soil compacted when a patio was redone. This is helping and will keep it upuntil back to normal. No longer soggy after rains as had been and the grass quality much improved. Just wish it werefaster but this is always a work in progress and beats tearing up lawn and putting down new soil and seeds.Would be a 5 star is faster. Probably nothing faster.

Good quality and good dissolving rate

This gypsum brand has been a lifesaver and clay soil changer! This clay soil has been the bane of our existence and wanted to find something to help with this. Well ..this was it! The soil that was like rock. Now it's actively cracking, becoming soft and now the doggos paws make paw prints!!!Thank you!!!!!

It has been raining nonstop stop as soon as I have a semi dry day I will put it out and let you know the results

Small, small expensive bag.

Great delivery as usual through Amazon Prime. The product is my second order. I use it in my garden and pots .. good product. Give it a try.