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Item #:
84585059
Organic Gypsum Powder 5LB - Made in USA - OMRI Listed - Calcium Sulfate Dihydrate - Garden Soil Amendment Fertilizer for Lawns, Plants, Mushroom
86% of respondents would recommend this to a friend
Item #:
84585059
SHP 37
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Order now and get it around Saturday, October 03
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Supplies essential nutrients calcium and sulfur to improve plant growth and maximize fertilizer performance.
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What Stands Out
Organic Certification
This gypsum powder is OMRI listed, ensuring it meets organic standards, making it a safe and effective choice for environmentally conscious gardeners who prioritize natural amendments.
Nutrient Boost
Rich in calcium and sulfur, this product specifically helps prevent blossom end rot in plants, promoting healthier growth and improved yields for fruits and vegetables.
Versatile Application
Ideal for various uses, from lawn care to mushroom cultivation, this 10LB bag provides a comprehensive solution for diverse gardening needs, enhancing soil quality and plant vitality.
Product Details
- OMRI Listed - OMRI Certified 2023
- Supplies essential calcium and sulfur nutrients
- pH Neutral. Cures Blossom End Rot in Tomatoes and Roses
- Loosens compacted soil for faster water penetration
- Mushroom Cultivation benefits - improves substrate structure and water-holding capacity
- Manufactured in the USA from premium quality ingredients
| Brand Name | Cz Garden Supply |
| Model Number | CzGYPpdr |
| Global Trade Identification Number | 00850036899167 |
| Number of Packs | 1 |
| Manufacturer | Cz Garden |
| Number of Items | 1 |
| Unit Count | 80 Ounce |
| Part Number | CzGYPpdr |
| Item Form | Powder |
| Specific Uses For Product | Lawns,Organic |
| Coverage | Resealable |
| Target Species | Mushroom |
| Item Weight | 5 pounds (2.27 kg) |
| Mixing Ratio | 1:0:0 |
| Brand | Cz Garden Supply |
Who Should Buy?
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Gardeners
Ideal for gardeners needing to amend soil, improve structure, and provide essential nutrients for plants.
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Mushroom Cultivators
Beneficial for mushroom cultivation by promoting healthy growth through enhanced soil quality and nutrient availability.
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Fruit Growers
Effective in preventing blossom end rot in tomatoes and other fruits by supplying necessary calcium and sulfur.
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Non-Organic Farmers
May not suit conventional farming practices that avoid organic soil amendments and include synthetic fertilizers.
Product Description
Organic Gypsum Powder 5LB - Made in USA - OMRI Listed - Calcium Sulfate Dihydrate - Garden Soil Amendment Fertilizer for Lawns, Plants, Mushroom Cultivation. Calcium & Sulfur. Cures Blossom End Rot
Dietary Supplement Disclaimer
Statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
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Customer Questions & Answers
-
Question:
What is Organic Gypsum Powder?
Answer: Organic Gypsum Powder is a natural soil amendment primarily composed of Calcium Sulfate Dihydrate. It enhances soil structure, improves drainage, and helps break up compacted soil. This product is ideal for gardening and agriculture, promoting healthier plant growth by allowing roots to penetrate more easily. It is commonly used in lawns, vegetable patches, and even mushroom cultivation, making it a versatile choice for both home gardeners and commercial growers. -
Question:
How do I use Organic Gypsum Powder in my garden?
Answer: To use Organic Gypsum Powder effectively, apply it at the recommended rate based on soil testing or package instructions. Typically, it involves spreading an even layer over the soil surface and incorporating it into the top 6-12 inches of the soil. This will help improve soil aeration, drainage, and nutrient availability. It's particularly effective in clay-heavy soils, allowing for better root development and moisture retention, making your garden thrive. -
Question:
Is Organic Gypsum Powder safe for my pets and kids?
Answer: Yes, Organic Gypsum Powder is considered safe for use around pets and children when applied according to the instructions. It is a natural mineral product that poses minimal risk compared to synthetic fertilizers. It is important to keep any garden amendments out of reach while applying them, but after application, it typically poses no harmful effects, allowing you to enjoy your garden worry-free. -
Question:
Can I use Organic Gypsum Powder for mushroom cultivation?
Answer: Absolutely! Organic Gypsum Powder is an excellent choice for mushroom cultivation. It provides essential calcium and sulfur, which are crucial nutrients for mushroom growth. Mix it with other substrates like straw or sawdust to create an optimal environment for fungal growth. The powdered form allows it to integrate easily into substrate mixes, supporting robust mushroom yield and quality. -
Question:
What are the benefits of using Organic Gypsum Powder in lawns?
Answer: Using Organic Gypsum Powder in lawns promotes better soil structure, water infiltration, and nutrient uptake. It reduces soil compaction, allowing grass roots to expand more effectively and encouraging a healthier, greener lawn. Additionally, it can help combat issues with sodic soils, enhancing the overall landscape health. Incorporating this product results in lush green lawns that withstand environmental stresses better. -
Question:
Is Organic Gypsum Powder organic and environmentally friendly?
Answer: Yes, Organic Gypsum Powder is an environmentally friendly product as it is a natural mineral extracted from the earth. This makes it suitable for organic gardening practices. Unlike synthetic fertilizers, it does not contribute to harmful runoff or soil degradation. It enhances soil health sustainably, allowing your garden ecosystem to thrive without compromising the environment. -
Question:
How often should I apply Organic Gypsum Powder?
Answer: The frequency of application for Organic Gypsum Powder varies based on soil composition and specific plants' needs. Generally, applying it once or twice a year is sufficient for most gardens and lawns. Conducting a soil test can determine specific nutrient needs, helping you tailor your application schedule. This ensures optimal soil health and productivity tailored to your unique gardening requirements. -
Question:
Does Organic Gypsum Powder alter soil pH?
Answer: No, Organic Gypsum Powder does not significantly alter soil pH, as it is neutral in nature. Instead, it improves soil structure and nutrient dynamics without affecting acidity or alkalinity. This makes it a perfect addition to various soil types since it enhances fertility while maintaining the preferred pH levels for your plants, ensuring they have the best opportunity to thrive. -
Question:
Can Organic Gypsum Powder help with drainage issues?
Answer: Yes, Organic Gypsum Powder effectively alleviates drainage issues, especially in heavy clay soils. By helping to break up compacted soil particles, it enhances water movement and aeration, promoting healthier root systems and preventing waterlogging. This is especially beneficial in areas with high rainfall or poor drainage, leading to improved growth conditions for plants and lawns. -
Question:
Where can I buy Organic Gypsum Powder 10LB in Saint Helena?
Answer: You can purchase Organic Gypsum Powder 10LB exclusively from Ubuy in Saint Helena. Ubuy offers a reliable platform to buy this high-quality product, ensuring that you have access to a natural soil amendment that will benefit your garden and lawn. With a user-friendly interface and reliable service, Ubuy makes it easy to find the products you need for healthy plants and flourishing gardens.
Cz Garden Supply Fertilizers & Plant Food CzGYPpdr Editorial Review
Organic Gypsum Powder 10LB - Made in USA - OMRI Listed - Calcium Sulfate Dihydrate - Garden Soil Amendment Fertilizer for Lawns, Plants, Mushroom Cultivation. With its effective sulfur and calcium content, this gypsum powder is designed to improve soil structure and ensure optimal plant growth. Many users have found relief from blossom end rot in their tomato plants, crediting this product for its remarkable results. The straightforward instructions for soil drenching ensure that even those with smaller gardens can benefit. Customers have praised the quick and helpful responses from the seller regarding application, making it a valuable resource for gardeners looking to enhance their soil quality.
Customer Reviews & Ratings
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Pros
- Effective in reducing blossom end rot
- Improves soil structure and water retention
- Fast seller response for questions
- Excellent for a variety of plants
- Resealable packaging for easy storage
Cons
- Instructions may initially seem tailored for larger gardens
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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SHP 37
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Features & Benefits
- 100% Organic mineral fertilizer
- Improves soil structure and water-holding capacity
- Loosens compacted soil
- Cures Blossom End Rot in tomatoes
- Ideal for mushroom cultivation
- Made in the USA
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