Model # 433675

Internet #202311920

Store SKU #433675

Arizona's Best 0.5 cu. ft. Gypsum
0038421002198

Arizona's Best

0.5 cu. ft. Gypsum

$5.99 /each

Frequently Bought Together

Product Overview

Gypsum helps to keep soil moisture in the garden. It works as a natural lawn and garden softener. Green wise product for any season.

  • Improves fertilizer efficiency and promote root growth
  • Use to aid water penetration
  • Use to loosen tight grounds
  • 40 lbs. bag provides 0.5 cu. ft.
  • Note: product may vary by store
  • Use this calculator to determine how much product you need to complete your project:

    Home Depot mulch and top soil calculator tool

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Customer Questions & Answers

Should I add gypsum?

My garden has clay soil bellow 4 inch ground level. On the top 4 inch I put top soil. Should I add gypsum to the soil? If I add, should I put it bellow, or top layer is fine? I live in east bay, california.
Asked by: Gardengirl
Not sure where you live. We are in central Arizona and our soil is compacted with granite and we needed to aerate before we fertilized. This was old stock, had gotten wet. Very hard to work with.
Answered by: Anonymous
Date published: 2017-02-21

This product has not been available either online or in stores for months and months. What's the ...

This product has not been available either online or in stores for months and months. What's the story? Will in ever be back in stock? Why leave it on the website if it's never available?
Asked by: Frustrated
Don't know, except it's sometimes hard to find in the winter months. We thought this was a fresh shipment, but obviously not.Very poor quality, old stock
Answered by: Anonymous
Date published: 2017-02-21

How much would I need to treat about 8000 square feet?:

Asked by: quimby
Depends on the clay component of your soil. very heavy soils need about 4000 lbs per acre. witch is roughly 1 1/2 oz. per square foot. lighter soils need less than that. Do a soil structure test and analysis to determine the clay content of your soil and decide from there. for 8000 sq ft of very heavy soil, that would be about 750 lbs I think.
Answered by: grdner
Date published: 2016-09-17

Is this Calcium Sulfate Dihydrate?

Asked by: Ficus
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Customer Reviews

0.5 cu. ft. Gypsum is rated 4.2 out of 5 by 10.
Rated 1 out of 5 by from 7 in store but nowhere to be found? You have 7 in stock but no location in the store so i can find it, what's the point? It's not as though your staff ever knows anything or cares to find out. Locating my own items on your site was the only thing that made your stores usable because your staff is so so so awful. Off to Lowe's...again. i keep getting reminded why I dont come here. Thanks for that.
Date published: 2016-09-24
Rated 5 out of 5 by from Awesome in a bag! So easy to apply. Just make sure you have disposable gloves and it's not windy outside. Our front and back yard were a mound of rocks and hard soil. The Ph was too low for grass to grow so I had to apply Gypsum to the clod and pray for a miracle. Like magic the gypsum made dirt appear. I turned the soil once-twice a day for four days working the gypsum further and further into the mound. Even without the effort I could see the soil breaking down. Day five I applied the lime to the soil with ease. I plan on using this product again.
Date published: 2016-04-19
Rated 5 out of 5 by from Makes Planting Easy I use it to allow me to dig the clay to create new garden beds and on the lawn for better water absorption.
Date published: 2016-10-25
Rated 4 out of 5 by from Great for soil, but has many small stones in it. Gypsum is the magic ingredient for clay soil. It improves drainage, tilth, soil structure. This is a raw ore product, brownish with many small stones (2-3 cm) in it. It would be fine for garden use or preparing soil for a lawn, but if you use it on an established lawn, you have to rake the pebbles out afterwards. The price is great though. Another big hardware store in town has pure powder gypsum, 50# at about twice the price. It's absolutely indispensable for soil preparation here with our high clay soil. Without it plants just sit. They can't push their roots thru the soil.
Date published: 2014-05-05
Rated 5 out of 5 by from Outstanding Product I purchased this on the advice of someone and could not be more satisfied with the results I achieved. My soil is an extremely hard clay. I planted eight palm trees and used a jack hammer to get through the soil. The first two holes took two hours to dig. I mentioned it to someone and they told me about this product. I used it at about three times the recommended ratio and the results are phenomenal. It seems like the hard soil is now a top soil. It broke up that nasty clay unbelievably. I am loving this product.
Date published: 2012-02-23
Rated 5 out of 5 by from Great Product The earth is compacted clay in my yard. I use this product to loosen the clay and allow water to drain. Once you add the gypsum and water, the earth becomes porous and allows plants to drain. It is an amazing product. I use this every time I plant something. I bought a new home with no landscaping in the rear yard. I add this to the soil and overnight it breaks up the soil, so your plants can thrive.
Date published: 2012-04-10
Rated 5 out of 5 by from great product. I found out about this product by accident, this product will help if you have clay soil, gypsum will work faster than steer manure, this product will work immediately, your soil will be soft, I am very happy home depot carries this product, it is wonderful.
Date published: 2012-02-28
Rated 4 out of 5 by from It works, it just takes time. Purchased this to counter urine burn (thanks to my dog). I found various suggestions for this product. I must say, the grass is in better shape, just give it a few weeks. Will definitely have some in stock.
Date published: 2010-10-29
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