* Images shown are of mature plants
My Garden Go-Tos™
All-Natural Formula Lowers Soil pH Safely
The secret to blue blooms in your garden is here! With Espoma's Organic Soil Acidifier, a proprietary, all-natural formula, you'll be well on your way to transitioning your pink hydrangeas blue effortlessly.
Espoma's USDA-certified sulfur and gypsum formula is made with solar power. That means it lowers your soil pH without the need for harsh chemicals. Even better is the fact that it's safer than traditional aluminum sulfate, so you'll have blue blooms without the muss or fuss.
Simply apply to your pink hydrangeas or any other acid-loving plants in spring. It couldn't be easier to use: Use the formula in the spring and repeat your application every 60 days until you achieve your desired soil pH and color for your blooms.
Whether you use it for hydrangeas or blueberries and magnolias or even evergreens, Espoma's Organic Soil Acidifier gets the job done. After you've followed package instructions for your plant and completed your application, just water thoroughly. No guesswork or hassle for you - only bright blue blooms and better growth for your acid-loving plants!
You can still order, but due to cold weather, we have delayed shipping to the areas shaded on the map below. We want your new plant to thrive right out of the box, so we will wait on shipping your order until the weather is ideal. This includes anyone in
Growing Zones 3, 4, 5, & 6. If you are unsure of your growing zone, visit our
Growing Zone Finder.
Some plants are not available for immediate shipment, and delayed delivery is noted.
We will resume normal shipping in the Spring. Please see the table below for your approximate ship date.
|Growing Zone||Shipping Resumes|
|Zones 3 & 4||Week of May 2nd|
|Zone 5||Week of April 11th|
|Zone 6||Week of March 28th|
|Zones 6 - 11||Ships Now!|
Estimated Shipping Time: Most orders ship within 1-2 days. As noted on the website, some items are seasonal, and may only ship in spring or fall. Once your order is shipped, you'll receive an email with a tracking number.
|Order Total||Shipping Charges|
|Less than $15||$11.99|
|$129 +||FREE SHIPPING!|