Features & Benefits
- Turns hydrangeas blue
- Lowers the pH of soils for optimum growth of acid-loving plants
- Derived from Elemental Sulfur & Gypsum
- Great for blueberries
- Safer than Aluminum Sulfate
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Item #:
9710213
Espoma Organic Soil Acidifier Soil Amendment; Lowers Soil pH and Turns Hydrangeas Blue! Contains Elemental Sulfur and can be Used for Organic
Item #:
9710213
€ 35
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Turns hydrangeas blue, lowers the pH of soils for optimum growth of acid-loving plants and great for blueberries
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What Stands Out
Natural Ingredients
Made from high-quality natural ingredients, ensuring a safe and eco-friendly solution to lower soil pH, promoting healthier plant growth without harmful chemicals.
Easy Application
Convenient 6-pound packaging allows for straightforward application, making it easy for gardeners to enhance soil acidity and boost the performance of acid-loving plants effortlessly.
Value Pack
The 2 pack option provides excellent value, allowing gardeners to treat multiple areas or replenish their supplies without frequent purchases, ensuring cost-effective gardening solutions.
Product Details
- Turns hydrangeas blue
- Lowers the pH of soils for optimum growth of acid-loving plants
- Derived from Elemental Sulfur & Gypsum
- Great for blueberries
- Safer than Aluminum Sulfate
- Spread evenly around the plant out to the drip line and water well. Repeat in 60 day intervals until desired pH or bloom color is achieved.
| Brand Name | Espoma |
| Model Number | GSUL6 |
| Manufacturer | Espoma |
| Number of Items | 2 |
| UPC | 689833775677 |
| Unit Count | 96 Ounce |
| Part Number | GSUL6 |
| Item Weight | 6 pounds (2.72 kg) |
| Item Form | Granules |
| Specific Uses For Product | Soil Conditioning |
| Coverage | Medium |
| Target Species | Hydrangeas, Blueberries |
| Brand | Espoma |
| Number of Packs | 2 |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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Acid-Loving Plants
Ideal for gardeners cultivating blueberries, azaleas, and rhododendrons that thrive in acidic soil conditions.
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Soil Testing Needs
Suitable for users needing to amend their soil pH based on test results indicating overly alkaline conditions.
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Organic Gardening
Great for organic gardeners looking for natural solutions to enrich soil acidity and promote healthy plant growth.
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Neutral Soils
Users with already neutral or acidic soils may not see the benefits of adding additional acidifying agents.
Product Description
Espoma Organic Soil Acidifier Soil Amendment; Lowers Soil pH and Turns Hydrangeas Blue! Contains Elemental Sulfur and can be Used for Organic Gardening 6 lb. Bag - Pack of 2
About This Item
Introducing the Espoma GSUL6 Soil Acidifier, the perfect solution for all your soil acidity needs! This 6-pound, 2-pack of organic soil acidifier is a must-have for any gardener looking to optimize their plant's growth. The Espoma GSUL6 Soil Acidifier is specially designed for plants that thrive in acidic soil conditions. With this product, you can easily lower the pH level of your garden soil, creating the perfect environment for acid-loving plants like blueberries, tomatoes, hydrangeas, roses, azaleas, camellias, rhododendrons, evergreens, citrus trees, blue hydrangeas, gardenias, magnolias, holly trees, and juniper bushes. This natural soil acidifier is made from high-quality ingredients that are safe for both your plants and the environment. It is formulated with Espoma's renowned expertise and commitment to organic gardening, ensuring that you provide the best care for your plants without any harmful chemicals. The Espoma GSUL6 Soil Acidifier is easy to use: simply follow the instructions on the package and apply the recommended amount to the soil around your plants.
The granular form of this acidifier allows for easy and precise application, ensuring that your plants get the right amount of acidity to thrive. With this 2-pack of Espoma GSUL6 Soil Acidifier, you'll have enough product to treat a larger area of your garden or multiple pots and containers. Whether you're an experienced gardener or just starting out, this acidifier is a must-have for anyone looking to enhance their soil's pH levels and create the optimal growing conditions for their acid-loving plants. Don't let alkaline soil hold your plants back. Get the Espoma GSUL6 Soil Acidifier today and watch your acid-loving plants flourish like never before.
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Customer Questions & Answers
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Question:
What is Espoma GSUL6 Soil Acidifier used for?
Answer: Espoma GSUL6 Soil Acidifier is primarily used to lower the pH level of soil. It helps create an optimal environment for acid-loving plants such as azaleas, blueberries, and rhododendrons. By amending the soil with this product, you can enhance nutrient availability, improve plant health, and promote vivid flowering. It's especially useful in regions with alkaline soil, where certain plants struggle to thrive. -
Question:
How do I apply Espoma GSUL6 Soil Acidifier?
Answer: To apply Espoma GSUL6 Soil Acidifier, first test your soil's pH to determine how much acidifier you need. Spread the desired amount evenly over the soil surface and then mix it in at least 6-8 inches deep. Water the area thoroughly after application to help the granules activate. This method ensures that acidification occurs efficiently and promotes healthy root development for your plants. -
Question:
Is Espoma GSUL6 safe for vegetables and fruits?
Answer: Yes, Espoma GSUL6 Soil Acidifier is safe to use around vegetable and fruit gardens. It is composed of natural ingredients which help lower soil pH without introducing harmful chemicals. Just ensure you follow the recommended application rates to avoid over-acidifying the soil. Many gardeners use it to benefit crops like strawberries and tomatoes, which thrive in slightly acidic conditions. -
Question:
Can I use Espoma GSUL6 Soil Acidifier on my lawn?
Answer: Espoma GSUL6 Soil Acidifier can be beneficial for lawns, particularly if you're dealing with high pH levels. It helps to create the conditions for a healthier lawn by improving nutrient availability. Apply it in the fall or spring when the grass is actively growing, allowing for optimal absorption. Acidifying your lawn can result in greener, more robust growth and a better overall appearance. -
Question:
How often should I use Espoma GSUL6 Soil Acidifier?
Answer: The frequency of applying Espoma GSUL6 Soil Acidifier typically depends on your soil pH level and the specific needs of your plants. Generally, it’s recommended to reapply every 6 to 12 months, especially if your soil tends to revert to alkaline. Regular monitoring of your soil’s pH will help you determine if additional applications are necessary, ensuring your plants receive the right conditions for growth. -
Question:
Can I mix Espoma GSUL6 Soil Acidifier with other fertilizers?
Answer: It is generally not advisable to mix Espoma GSUL6 Soil Acidifier directly with other fertilizers. Acidifying agents and certain fertilizers may react unpredictably, potentially harming plants. However, you can apply them at different times. If working on acid-loving plants, apply the acidifier first, allow it to settle, then follow up with the appropriate fertilizer according to package directions. -
Question:
What types of plants benefit from using Espoma GSUL6 Soil Acidifier?
Answer: Espoma GSUL6 Soil Acidifier is particularly beneficial for plants that prefer acidic soil. This includes ornamentals like azaleas and camellias, as well as culinary favorites like blueberries and strawberries. These plants thrive in lower pH conditions, and using this soil acidifier can enhance their growth, flowering, and fruit production, leading to a more vibrant garden landscape. -
Question:
Is Espoma GSUL6 Soil Acidifier easy to store?
Answer: Yes, Espoma GSUL6 Soil Acidifier is easy to store as it comes in a bag that can be resealed. Store it in a cool, dry place away from moisture and direct sunlight. Proper storage ensures the product retains its effectiveness. When kept correctly, it remains usable over multiple planting seasons, making it a convenient choice for gardeners. -
Question:
Can I use Espoma GSUL6 Soil Acidifier on potted plants?
Answer: Absolutely! Espoma GSUL6 Soil Acidifier can effectively be used on potted plants, especially acid-loving varieties. When adding to potted soil, mix it in thoroughly before planting or use it as a top dressing for established pots. This product can significantly enhance plant vitality and flowering in container gardens, ensuring they receive the right soil acidity. -
Question:
Where can I buy Espoma GSUL6 Soil Acidifier, 6-Pound - 2 Pack?
Answer: You can buy Espoma GSUL6 Soil Acidifier, 6-Pound - 2 Pack from Ubuy in Finland. Ubuy offers a convenient shopping experience with a variety of options to suit your gardening needs, ensuring you can easily find and purchase this essential soil amendment for your garden.
Espoma Fertilizers & Plant Food GSUL6 Editorial Review
This product is a 2-pack of 3-pound bags of pellet-form fertilizer specifically designed to turn hydrangeas blue. However, the effectiveness of the product depends on the current pH and composition of the soil. Heavy clay soils may require more product for desired results. It cannot be diluted to be sprayed. Overall, the product receives mixed reviews due to the uncertainty of its effectiveness on different soil types. Some customers report great success in turning their hydrangeas blue, while others did not see noticeable results. Some customers also mistakenly received two packs.
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Pros
- Specifically designed to turn hydrangeas blue
- Pellet form is easy to distribute in soil
Cons
- Effectiveness varies based on current soil pH and composition
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Top selling Organic Soil Acidifier in Finland
Last Updated on August 20, 2026
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