#1 - Espoma Organic Soil Acidifier

Espoma Organic Soil Acidifier

Lowers soil pH for acid-loving plants

Contains all-natural ingredients

Easy-to-use granules for precise application

$1795

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Safe, All-Natural Formula Lowers Soil pH

The secret to blue blooms? Espoma's Organic Soil Acidifier! Espoma's proprietary formula is an all-natural solution to upgrading your flower beds, transitioning your pink hydrangeas blue with ease.

In fact, Espoma's USDA-certified sulfur and gypsum formula is made with solar power so it lowers soil pH without harsh chemicals. And it's safer than traditional aluminum sulfate. This product is Certified Organic by Clemson University.

Simply use it on your pink hydrangeas or any other acid-loving plants in spring. It couldn't be easier to apply: Apply in spring and repeat the application every 60 days until you achieve your desired soil pH.

From hydrangeas to blueberries and magnolias or evergreens, Espoma's Organic Soil Acidifier. After you're done applying per package instructions for your plant, just water thoroughly. No muss and no fuss - only bright blue blooms and better growth for your acid-loving plants!

Full Planting & Care Instructions

Product Details

Does Not Ship To:AK, AZ, HI, PR

Customer Reviews & Photos

5.0

Based on 11 reviews

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david s.
4/18/2025
Verified Buyer

perfect

awesome

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Clayetta W.
4/6/2025
Verified Buyer

espionage Organic Soil Acidifier

So far the hydrangea plants look great!! Healthy. No blooms yet tho. I’m hoping for big blue to purple blooms.

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Jacqueine L.
4/5/2025
Verified Buyer

Use of Espoma organic soil acidifier

I did not use the fertilizer. I believe it will change the color of the flowers which I do not want. I just use it for the future.

Fast Growing Trees Plant ExpertHello Jacqueine! Thank you for sharing your thoughts! We understand your concern about color changes. Using Espoma Organic Soil Acidifier for future care is a great idea, as it helps improve soil health over time. If you ever have questions or need guidance, feel free to reach out!
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Mary B.
3/9/2025
Verified Buyer

Great

My plants is beautiful and doing great

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Russell
4/10/2024
Verified Buyer

I have not yet tried.

I have not yet tried.

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