10 Best Fertilizer For Hydrangeas of 2025

Tested and Reviewed: Top 10 Fertilizer For Hydrangeas deals with expert ratings from 8.1 to a perfect 10

May 2025 Edition

Editor's Choice

9.7

TPS Nutrients

TPS NUTRIENTS Hydrangea Fertilizer for Acid Loving Plants, Liquid Plant Food 8 oz (250mL)

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Editor's bottom line:

“This fertilizer for hydrangeas is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

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Hydrangea Fertilizer for Acid Loving Plants

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Picked by 343 people today

9.5

Miracle-Gro

Miracle-Gro Water Soluble Azalea, Camellia, Rhododendron Plant Food - Fertilizer for Acid-Loving Plants & Flowers, 5 lb.

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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

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9.5

Flora's Market

Hydrangea Fertilizer - Nursery Grade - Controlled Release - Works on All Varieties of Hydrangeas

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SPECIALLY FORMULATED - Coated prill provides a slow release resulting in better more steady growth throughout the season.
EASY TO USE - Just sprinkle around the base of your plant and it is good to go all season long
Slower release also PREVENTS overdosage and potential damage to root system.
Slower release also PREVENTS overdosage and potential damage to root system.

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9.2

GARDENWISE

GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (1/2 qt)

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SPECTACULAR BLOOMS ALL YEAR: Promote vivid flowers with our balanced 8-4-8 formula, enriched with iron and sulfur for enhanced soil acidity and brighter, healthier blooms.
TAILORED FOR ACID-LOVING PLANTS: Ideal for hydrangeas, azaleas, camellias, and magnolias, providing essential nutrients for lush foliage and robust health.
EFFORTLESS APPLICATION: Designed for gardeners of all levelssimply sprinkle, water, and watch your garden flourish with minimal effort.
LONG-LASTING NOURISHMENT: Slow-release formula reduces application frequency while delivering steady nutrients for up to three months.
VERSATILE AND RELIABLE: Perfect for indoor and outdoor use, ensuring your garden thrives in any season and any climate.

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Best Value

9.0

Save 17%

Espoma

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

17% Off

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THE ORIGINAL: Holly-tone is the original plant food for all acid loving plants. Holly-tones 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.

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8.8

EZ-gro WE MAKE GROWING EASY

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).

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Transform Hydrangeas into Stunning Blue Beauties: Get gorgeous blue hydrangea flowers with EZ-gros 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-gros 21-7-7 formula is ideal not just for hydrangeas, but for rhododendrons, azaleas, camellias, and gardenias too. Its 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 thats easy to mix and apply. No complicated steps, just add it to water and watch your plants flourish. Its 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 everjust mix, water, and watch your plants flou

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8.6

Jack's Classic

Jack's Classic 7-3-3 Hydrangea Blue Water-Soluble Fertilizer with Micronutrients to Enhance Blue Flowers, 1.5lbs

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Main Highlights

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 Jacks 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.

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8.3

Espoma

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

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Main Highlights

THE ORIGINAL: Holly-tone is the original plant food for all acid loving plants. Holly-tones 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

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8.1

Jobe's Organics

Jobe's Organics Granular Soil Amendment, Organic Soil Acidifier for Blueberry and Hydrangea Plants, 6 lbs Bag

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Package contains 6 pounds organic soil acidifier grains and is produced to avoid wasteful runoff, mess, hazards and smells
Soil acidifier is formulated to decrease alkalinity and provide acid loving plants with natural elemental sulfur for vibrant color and lush foliage
Jobe's organic soil acidifier soil amendment contains no synthetic chemicals and is OMRI listed for organic gardening by the USDA
Application is simple and should be done at the time of planting and reapplied 2-3 times a year to maintain desired soil pH
Jobe's organic soil amendment is easily measured to provide the right pH level for acid loving plants without risk of burning

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8.1

Espoma

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

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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

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Our Best Overall Choice

Best Choice

9.7

TPS Nutrients

TPS NUTRIENTS Hydrangea Fertilizer for Acid Loving Plants, Liquid Plant Food 8 oz (250mL)

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Hydrangea Fertilizer for Acid Loving Plants

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