Search

*Disclaimer: Tossions earns a commission from qualifying purchases.

The 8 Best fertilizer for hydrangeas of 2025

Are you trying to find fertilizer for hydrangeas among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling fertilizer for hydrangeas on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 13 hours of research and did 26 fertilizer for hydrangeas tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best fertilizer for hydrangeas you can buy today

No. 1
Espoma Organic Holly-Tone 4-3-4 Evergreen & Azalea Plant Food; 4 lb. Bag; The Original & Best Organic Fertilizer for All Acid Loving Plants Including Azaleas, Rhododendrons & Hydrangeas. Pack of 2
  • THE ORIGINAL: Holly-tone is the original plant food for all acid loving plants. Holly-tone’s natural organics break down slowly to provide a long-lasting reservoir of plant nutrients.
  • FOR USE ON: Not just for Holly; Use Holly-tone organic fertilizer for azaleas, hydrangeas, rhododendrons, blueberries, evergreens, strawberries, camellias, and all plants that thrive in acidic soils.
  • CONTAINS: Holly-tone is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula; 4-3-4 Fertilizer analysis with 5% sulfur. Holly-tone is environmentally Safe - No sludges or toxic ingredients.
  • WHEN / HOW TO USE: Best to use Holly-tone fertilizer spring and fall on flowering & evergreen shrubs. For berries use in the early and late spring. Apply to the soil around the drip line of the plant and then water thoroughly. Holly-tone is ready to use and requires no mixing.
  • FOR ORGANIC GARDENING: Holly-tone is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production.
  • MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929.
  • You will receive 2 (4 pound) bags per order
SaleNo. 2
No. 3
Jack's Classic 7-3-3 Hydrangea Blue Water-Soluble Fertilizer with Micronutrients to Enhance Blue Flowers, 1.5lbs
  • 7-3-3 Analysis - Great for promoting lush leaves and enhance and maintain blue color in many pink and blue varieties of hydrangeas.
  • Many Ways to Feed - Hydrangea Blue can be used as a foliar or root feeding product. Great for spraying directly onto leaves, roots, or when used in a continuous feed system.
  • Water-Soluble Powder – Powdered concentrates go further than liquid fertilizers. Simply mix your measured powder with water and you are ready to feed with multiple gallons of liquid fertilizer!
  • Included Measuring Spoon – All Jack’s Classic fertilizers come with a convenient spoon to create the right amount of liquid fertilizer for your plants.
  • Micronutrients - Added micronutrients supply your plant with the nutrition it needs for optimal growth and health. Unlike other fertilizers, additional feeding is not required.
No. 4
Miracle-Gro Water Soluble Azalea, Camellia, Rhododendron Plant Food
  • Instantly feeds acid-loving plants for lush foliage and beautiful blooms
  • Feed every 1-2 weeks
  • Helps acid-loving plants such as azalea, camellia, gardenia, hibiscus, holly, hydrangea, orchid, rhododendron, and many others thrive
  • Use with Miracle-Gro Garden Feeder or any watering can
  • Feeds the roots promoting quick and beautiful results
No. 5
EZ-GRO Hydrangea Fertilizer, Liquid Plant Food 21-7-7 with Aluminum Sulfate for Hydrangeas - Perfect for Blue Flowers | Rhododendrons & Azalea Fertilizer, Ideal Hydroponic Nutrients - 1 qt (32 oz).
  • Transform Hydrangeas into Stunning Blue Beauties: Get gorgeous blue hydrangea flowers with EZ-gro’s 21-7-7 fertilizer for indoor plants, specially formulated with added aluminum. This unique blend is made to enhance your hydrangea for vibrant blooms.
  • Perfect for All Acid-Loving Plants: EZ-gro’s 21-7-7 formula is ideal not just for hydrangeas, but for rhododendrons, azaleas, camellias, and gardenias too. It’s designed to meet the needs of all acid-loving plants, delivering the precise nutrients needed for strong growth and healthy blooms.
  • Micronutrient Package for Optimal Growth: With an advanced micronutrient blend, our fertilizer ensures your plants get the nutrition they need for larger, healthier blooms. The 21-7-7 formula supports robust growth, and provide essential elements.
  • Concentrated and Easy to Use: EZ-gro Hydrangea Fertilizer is a concentrated liquid that’s easy to mix and apply. No complicated steps, just add it to water and watch your plants flourish. It’s designed for both beginners and experienced gardeners, delivering professional-grade results with minimal effort.
  • Our story: We believe gardening should be simple and rewarding. Our mission is to create easy-to-use, effective hydroponic plant food for seasoned gardeners and beginners. Born from a passion for gardening, we crafted our liquid fertilizers to take the guesswork out of plant care. Our balanced formulas provide the nutrients your plants need for strong roots, vibrant blooms, and healthy growth. With EZ-gro, growing a beautiful garden is easier than ever—just mix, water, and watch your plants flou
No. 7
ENVY Plant Foods Acid-Loving Special (21-7-7) Water Soluble Hydrangea, Azalea, & Berry Plant Food (1.5 lb)
  • FEEDS INSTANTLY - to create lush foliage and amazing blooms + berries for all acid-loving plants
  • VERSATILE FORMULA - formulated for Azaleas, Hydrangeas, Magnolias, Gardenias, Camellias, Rhododendrons, Blueberries, etc.
  • 100% WATER SOLUBLE - easily dissolved into optimal ratios for your plants
  • RESEALABLE POUCH - all of ENVY's Water Soluble plant foods come in a resealable pouch for extended usage & no-mess storage
  • INCLUDES MEASURING SCOOP - for easy, optimal ratios of nutrients; removing the guess work out of usage.
SaleNo. 8
Espoma Organic Holly-Tone 4-3-4 Natural & Organic Evergreen & Azalea Plant Food; 4 lb. Bag; The Original & Best Fertilizer for All Acid Loving Plants Including Rhododendrons & Hydrangeas
  • THE ORIGINAL: Holly-tone is the original plant food for all acid loving plants. Holly-tone’s natural organics break down slowly to provide a long-lasting reservoir of plant nutrients.
  • FOR USE ON: Not just for Holly; Use Holly-tone organic fertilizer for azaleas, hydrangeas, rhododendrons, blueberries, evergreens, strawberries, camellias, and all plants that thrive in acidic soils.
  • CONTAINS: Holly-tone is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula; 4-3-4 Fertilizer analysis with 5% sulfur. Holly-tone is environmentally Safe - No sludges or toxic ingredients.
  • WHEN / HOW TO USE: Best to use Holly-tone fertilizer spring and fall on flowering & evergreen shrubs. For berries use in the early and late spring. Apply to the soil around the drip line of the plant and then water thoroughly. Holly-tone is ready to use and requires no mixing.
  • FOR ORGANIC GARDENING: Holly-tone is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production.
  • MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929.
No. 9
Espoma Organic Holly-tone 4-3-4 Natural & Organic Evergreen & Azalea Plant Food; 36 lb. Bag; The Original & Best Fertilizer for all Acid Loving Plants including Rhododendrons & Hydrangeas.
  • THE ORIGINAL: Holly-tone is the original plant food for all acid loving plants. Holly-tone’s natural organics break down slowly to provide a long-lasting reservoir of plant nutrients.
  • FOR USE ON: Not just for Holly; Use Holly-tone organic fertilizer for azaleas, hydrangeas, rhododendrons, blueberries, evergreens, strawberries, camellias, and all plants that thrive in acidic soils.
  • CONTAINS: Holly-tone is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula; 4-3-4 Fertilizer analysis with 5% sulfur. Holly-tone is environmentally Safe - No sludges or toxic ingredients.
  • WHEN / HOW TO USE: Best to use Holly-tone fertilizer spring and fall on flowering & evergreen shrubs. For berries use in the early and late spring. Apply to the soil around the drip line of the plant and then water thoroughly. Holly-tone is ready to use and requires no mixing.
  • FOR ORGANIC GARDENING: Holly-tone is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production.
  • MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929.
No. 10
Scotts Evergreen Flowering Tree & Shrub Continuous Release Plant Food 3-Pound
  • Excellent for evergreens, dogwoods, hydrangeas, magnolias and many other acid-loving trees and shrubs
  • Encourages vigorous root growth and lush foliage
  • Feeds for up to 2 months
  • Easy to use—simply apply directly to soil
  • Safe—won't burn your plants when used as directed Based on manufacturer's direction for use.
No. 11
Dr. Earth Organic & Natural MINI Acid Lover Azalea, Camellia, Rhododendron & Maple Fertilizer ( 1 lbs )
  • The only non-GMO project verified fertilizer in the U.S.A.
  • People & pet Safe - no synthetic chemicals, GMO infested chicken manure or toxic ingredients.
  • Handcrafted from human and feed grade ingredients. Enriched with multi-minerals, proteins, carbohydrates, humic acids & trace elements that promote the healthiest soils capable of growing the beautiful acid loving plants.
  • Organic transparency; OMRI (organic material review Institute), oim (organic input materials), CCOF (California certified organic farmers), nop (national organic program) and non-GMO project verified the highest level of purity and transparency.
  • Sustainably made in the U.S.A. Through a collaboration of high level enviornmentalists inspired to positively change the world. Formulated by Milo shammas, founder of Dr. Earth, to grow home grown foods.
No. 12
Earth Science Fast Acting Sulfur - Instantly Lower pH of Soil & Reduce Nutrient Runoff for Improved Growth & Color - Long Lasting Lawn Care for Acid Loving Plants (2.5lb)
  • Fast Acting Sulfur – Earth Science Fast Acting Sulfur works immediately to lower the pH of your soil. Help your hydrangeas, azaleas, and blueberries absorb more food and improve fertilizer effectiveness.
  • Lower Soil pH – If your soil pH is too high, your acid-loving plants might need a boost of sulfur. Earth Science Fast Acting Sulfur naturally lowers soil pH to help plants absorb more food.
  • Improve Color – Earth Science Fast Acting Sulfur will help green up your lawn and create colorful blooms! This fertilizer enhancer is great for hydrangeas, azaleas, blueberries, and other acid-loving plants.
  • People & Pet Friendly – Earth Science Fast Acting Sulfur is safe to use on any grass type, and safe for people and pets. Your human and furry friends can use the lawn immediately after application.
  • Nutri Bond Technology – Earth Science’s patented Nutri-Bond Technology bonds with the soil to help keep more product where you put it. Nutri-Bond is better for the environment and helps your lawn & garden get the most out of every application.
No. 13
Miracle-Gro Water Soluble Azalea, Camellia, Rhododendron Plant Food - Fertilizer for Acid-Loving Plants & Flowers, 5 lb.
  • Miracle-Gro Water Soluble Azalea, Camellia, Rhododendron Plant Food helps acid-loving plants and flowers thrive
  • Plant food instantly feeds acid-loving plants, including azaleas, camellias, rhododendrons, gardenias, hibiscus, hollies, hydrangeas, and orchids
  • Perfect to use on the indoor plants that decorate your bookshelf or side table, as well as the outdoor plants that live in your garden or planters
  • Apply plant food every 7-14 days with a watering can or Miracle-Gro Garden Feeder
  • Fertilizer won't harm other plants or burn foliage, when used as directed
No. 14
Espoma Organic Soil Acidifier Soil Amendment; Lowers Soil pH and Turns Hydrangeas Blue! Contains Elemental Sulfur & can be Used for Organic Gardening 30 lb. Bag - Pack of 1
  • FOR USE ON: For all Acid-loving plants; Use Espoma Organic Soil Acidifier for azaleas, hydrangeas, rhododendrons, blueberries, evergreens, strawberries, camellias, and all plants that thrive in acidic soils.
  • TURNS HYDRANGEAS BLUE: Turn Mophead & Lacecap hydrangeas blooms to an electric blue by adding Soil Acidifier and lowering soil pH
  • CONTAINS: Soil Acidifier contains elemental sulfur and gypsum
  • FOR ORGANIC GARDENING: Soil Acidifier is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production
  • MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929
No. 15
Jobe's 100046761 Azalea, Camellia & Rhododendron Fertilizer Spikes 9-8-7, 3 Pack (10 Spikes per Pack)
  • Pre-measured fertilizer spikes nourishes at the roots; Time release fertilizer for all acid loving plants like hydrangeas
  • Easy to use fertilizer spikes; No wasteful runoff, no mess, hazards or smells
  • Continuous supply of nutrients for acid loving plants below the surface, where the active roots are growing
  • Jobe's spikes feeds for full season; Continuous nourishment for azaleas, camellias, rhododendrons and hydrangeas
No. 16
Jobe’s Plant Food Fertilizer Spikes, Easy Plant Care for All Indoor Flowering Houseplants, 50 Count
  • Package contains 50 plant fertilizer spikes for indoor flowering houseplants and is produced to avoid wasteful runoff, mess, hazards and smells
  • Plant fertilizer is formulated with a 10-10-4 NPK to provide flowering houseplants nutrients they need for bright blooms and vibrant foliage
  • Application is simple and slow release fertilizer spikes should be replaced every 60 days
  • Jobe's fertilizer spikes come pre-measured to provide the right amount of nutrients for your plants and flowers with no risk of over fertilizing
  • Jobe's fertilizer spikes come in a variety of formulas and pack sizes to help provide lush foliage and vibrant color to your lawn and garden
No. 17
Down to Earth All Natural Acid Mix Fertilizer 4-3-6, 5 lb
  • A Natural fertilizer blended especially for acid lovers such as rhododendrons, azaleas, camellias, hydrangeas, evergreens, blueberries, raspberries, strawberries, potatoes and other plants that need a low pH
  • To encourage lush flowers and fruit, apply Acid Mix in early spring for vegetative growth and again when blooms appear.
  • Fall Applications can help promote root growth and boost resistance to extreme winter temperatures
  • All-Natural Ingredients: Made from organic, sustainably sourced materials, ensuring a chemical-free, eco-friendly option for gardeners seeking organic solutions.
  • Slow-Release Formula: The slow-release nature ensures a steady supply of nutrients, promoting long-lasting plant health and reducing the need for frequent applications.
SaleNo. 18
No. 19
Espoma Organic Holly-tone 4-3-4 Natural & Organic Evergreen & Azalea Plant Food; 18 lb. Bag; The Original & Best Fertilizer for all Acid Loving Plants including Rhododendrons & Hydrangeas.
  • THE ORIGINAL: Holly-tone is the original plant food for all acid loving plants. Holly-tone’s natural organics break down slowly to provide a long-lasting reservoir of plant nutrients.
  • FOR USE ON: Not just for Holly; Use Holly-tone organic fertilizer for azaleas, hydrangeas, rhododendrons, blueberries, evergreens, strawberries, camellias, and all plants that thrive in acidic soils.
  • CONTAINS: Holly-tone is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula; 4-3-4 Fertilizer analysis with 5% sulfur. Holly-tone is environmentally Safe - No sludges or toxic ingredients.
  • WHEN / HOW TO USE: Best to use Holly-tone fertilizer spring and fall on flowering & evergreen shrubs. For berries use in the early and late spring. Apply to the soil around the drip line of the plant and then water thoroughly. Holly-tone is ready to use and requires no mixing.
  • FOR ORGANIC GARDENING: Holly-tone is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production.
  • MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929.
No. 20
Espoma Organic Holly-tone 4-3-4 Natural & Organic Evergreen & Azalea Plant Food; 4 lb. Bag; The Original & Best Fertilizer for all Acid Loving Plants including Rhododendrons & Hydrangeas. Pack of 3
  • THE ORIGINAL: Holly-tone is the original plant food for all acid loving plants. Holly-tone’s natural organics break down slowly to provide a long-lasting reservoir of plant nutrients.
  • FOR USE ON: Not just for Holly; Use Holly-tone organic fertilizer for azaleas, hydrangeas, rhododendrons, blueberries, evergreens, strawberries, camellias, and all plants that thrive in acidic soils.
  • CONTAINS: Holly-tone is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula; 4-3-4 Fertilizer analysis with 5% sulfur. Holly-tone is environmentally Safe - No sludges or toxic ingredients.
  • WHEN / HOW TO USE: Best to use Holly-tone fertilizer spring and fall on flowering & evergreen shrubs. For berries use in the early and late spring. Apply to the soil around the drip line of the plant and then water thoroughly. Holly-tone is ready to use and requires no mixing.
  • FOR ORGANIC GARDENING: Holly-tone is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production.
  • MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929.

How to choose a good fertilizer for hydrangeas

Does the idea of finding a fantastic fertilizer for hydrangeas make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in fertilizer for hydrangeas. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top fertilizer for hydrangeas products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top fertilizer for hydrangeas on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top fertilizer for hydrangeas brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top fertilizer for hydrangeas based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the fertilizer for hydrangeas were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good fertilizer for hydrangeas, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your fertilizer for hydrangeas.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting fertilizer for hydrangeas for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our fertilizer for hydrangeas. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what fertilizer for hydrangeas should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on fertilizer for hydrangeas.