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Espoma Organic Garden Gypsum Soil Conditioner; All-Natural & pelletized mined Gypsum with no fillers or additives. Helps Loosen Clay Soil; 6 lb. Bag Pack of one

Espoma Organic Garden Gypsum Soil Conditioner; All-Natural & pelletized mined Gypsum with no fillers or additives. Helps Loosen Clay Soil; 6 lb. Bag Pack of one

Q: How do you add this to soil? I have a compacted lawn - does this need to be filled into the soil?

After adding gypsum to my soil I later decided I'd created more problems. This article will give a clear picture of what gypsum does but how it can also negatively impact your soil depending on the existing amount of salt and calcium. www.gardeningknowhow.com/garden-how-to/soil-fertilizers/using-gypsum-in-garden.htm I have no complaints about the product itself. I just didn't have my soil analyzed first. The article recommends using compost for lawns and using gypsum only for commercial purposes. Good luck whatever you decide to do.

Q: What is the calcium content of the product? I can't read Guaranteed Analysis on the side of the bag very well.

This is what the Guaranteed Analysis in the back of the bag shows: Calcium Sulfate 68%, Calcium Dihydrate 86%, Calcium 20%+, Sulfur 16%+

Q: what is difference between oyster shell and Gypsum? both are same calcium?

The difference is the source, oyster shells vs. gypsum dug out of the ground. Both are calcium and can be used the same way.

Q: why wouldn't I use gypsum?

Blossom end rot (BER) is an indication of a calcium deficiency. If you don't have BER, then no need to use gypsum or any other source of calcium. If you do have BER, adding a little gypsum can help solve the problem if, however, you're not over watering. Too much water can block absorption of calcium and other nutrients, and can cause BER.

4.6/5

Product ID: 8122957

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Details

Brand
Espoma
Item Weight
6 Pounds
Item Form
Granules
Coverage
Medium
Specific Uses For Product
Gardening

🌱100% all-natural gypsum

🧱loosens heavy clay soil

🇺🇸made in the USA since 1929

Description

🌿 Unlock your garden’s full potential with pure, organic soil magic!

CLAY SOIL SAVIOR - Transforms dense clay into breathable soil, unlocking superior root growth and plant vitality.
TRUSTED HERITAGE - Crafted by Espoma, pioneers in natural organics since 1929, proudly made in the USA.
PURE ORGANIC POWER - 100% pelletized mined gypsum with zero fillers or additives for truly natural soil health.
YEAR ROUND GARDEN BOOST - Safe and effective anytime during the growing season—sprinkle or spread with ease.
CERTIFIED ORGANIC CONFIDENCE - Registered Organic Input Material, perfect for eco-conscious gardeners and organic growers.

Espoma Organic Garden Gypsum is a 6 lb bag of 100% all-natural, pelletized gypsum designed to loosen heavy clay soils and improve root growth. Approved for organic gardening and made in the USA by a trusted leader since 1929, it also helps repair turf damage from winter salts and pet spots, making it an essential soil conditioner for healthier, more vibrant gardens.

Have a Question? See What Others Asked

How do you add this to soil? I have a compacted lawn - does this need to be filled into the soil?

What is the calcium content of the product? I can't read Guaranteed Analysis on the side of the bag very well.

what is difference between oyster shell and Gypsum? both are same calcium?

why wouldn't I use gypsum?

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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