Hydrangea fertilisers in comparison
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Last updated on 18.09.2026
1
Hydrangea Fertilizer - Nursery Grade - Controlled Release - Works on All Varieties of Hydrangeas (2 Pound)
Flora's Market
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9,9
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2
GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (1/2 qt)
GARDENWISE
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9,8
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3
Hydrangea Fertilizer, Flower Food for Vibrant, Bigger Blooms, 32oz
HiThrive
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9,8
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4
ENVY Plant Foods Acid-Loving Special | Water Soluble Fertilizer | Hydrangea, Azalea, & Berry Plant Food (5 lb)
ENVY
9% off
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9,7
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5
Organic Hydrangea Fertilizer, 2oz Makes 12 Gallons, Liquid Kelp Plant Food
TATAWORM
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9,7
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6
𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur - Indoor & Outdoor Soil Acidifier for Miracle Growth - 1 Quart
Gardenera
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9,6
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7
Happy Hydrangeas Fertilizer by Happy Nutrients - Premium 7-3-3 Powder with Micronutrients & Humic - Ideal for Hydrangeas, Azaleas, Rhododendrons, Camellias, Gardenias, and Magnolias - 12 oz
Ludicrous Nutrients
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9,5
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8
Leaves & Soul Hydrangea Fertilizer Liquid 3-5-4, Hydrangea Plant Food, 8 oz
Leaves and Soul
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9,5
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9
Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer, 8oz
Jack's Classic
22% off
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9,4
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10
Southern Ag All Purpose Granular Fertilizer 10-10-10, 5 LB Size: 5 LB
Southern Ag
11% off
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9,4
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You might also be interested in these hydrangea fertilisers.
Down To Earth All Natural Fertilizers Organic Acid Mix - 4-3-6, 40 lb
All-Natural Ingredients: Made from organic, sustainably sourced materials, ensuring a chemical-free, eco-friendly option for gardeners seeking organic solutions.
$ 87.49
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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.
$ 15.10
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FoxFarm Happy Frog Acid Loving Plants Fertilizer - Slow Release Fertilizer for Azaleas, Rhododendrons, Blueberries & More - Contains Mycorrhizal Fungi & Soil Microbes - OMRI Listed - 4 lb
THRIVE IN LOW PH SOIL: This fertilizer is designed specifically for low pH-loving plants like azaleas, and more. This fertilizer supports your acid-loving plants with the nutrients they need for growth
$ 22.99
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Grow Queen Organic Liquid Indoor Plant Food, Houseplant, Tropical & All-Purpose Indoor Plant Fertilizer, Organic Liquid Fertilizer 5-5-5 with Sea Kelp, 8oz Treats 50 Gallons
STRONGEST 5-5-5 ORGANIC LIQUID FERTILIZER – The only true 5-5-5 organic indoor plant fertilizer and plant food. Professional-grade yet gentle; feeds instantly without burn for fast growth, greener leaves, and strong roots in houseplants, tropicals, and potted plants; ideal daily indoor use. Boosts nutrients and vigor with balanced NPK.
$ 16.99
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Ammonium Sulfate 21-0-0 Fertilizer with Nitrogen and Sulfur | Lowers pH in Alkaline Soil | Ideal for Lawns, Hydrangeas, Azaleas, Blueberries and Acid-Loving Plants | Made in USA | 2 lb Bag
QUICK ACTING NITROGEN: Experience the immediate impact of quick-acting nitrogen on your plants. Our Ammonium Sulfate 21-0-0 delivers a swift infusion of nutrients, ensuring your plants receive the nourishment they need for vigorous growth.
$ 19.98
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DR EARTH 707P Organic 8 Bud and Bloom Fertilizer in Poly Bag, 4-Pound, Multicolor
More naturally available phosphorus; stable consistent plant growth, no growth spikes; 100-percent natural and organic
$ 16.99
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Aluminum Sulfate 2 Pounds - Soil Acidifier for Hydrangeas to Turn Blue | Lowers Soil pH Fast | Garden & Pond Use | Aluminum Sulfate for Hydrangeas, Plants (2 Pounds)
Create Vibrant Blue Hydrangeas – Our aluminum sulfate for hydrangeas safely lowers soil pH to produce stunning blue blooms by increasing aluminum availability.
$ 25.59
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Miracle-Gro Water Soluble Bloom Booster Flower Food, 5.5 lb.
Miracle-Gro Water Soluble Bloom Booster Flower Food promotes more blooms for greater color! (vs unfed plants)
$ 20.97
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Acidic Fertilizer – Liquid Plant Supplement for Lower Soil pH, Better Nutrient Uptake & Healthier Acid-Loving Plant Growth, 32 oz
Made for Acid-Loving Plants – Formulated to support plants that thrive in lower pH soil.
$ 24.99
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Ammonium Sulfate High Nitrogen Fertilizer for Plants Rapid Growth, 5lb
NITROGEN NUTRIENT PLANT FOOD: Unlike other garden & lawn fertilizers, our ammonia sulfate fertilizer has a 21-0-0 ratio with 21% nitrogen and 24% sulfur for improved soil health & greener growth.
$ 17.47
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Coast of Maine Organic Fertilizer for Rhodies, Azaleas & Berries, 12lb
Fertilizer for Rhodies, Azaleas & Berries
$ 31.51
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18-46-0 DAP Fertilizer - Made in USA - Nitrogen and Phosphorus Plant Food for Indoor/Outdoor Plants & Flower Gardens - Promotes Vigorous Growth and Big Blooms!
PREMIUM QUALITY INGREDIENTS – Cz Garden 18-46-0 is a high purity, premium DAP fertilizer for all indoor/outdoor flowers, lawn, and garden vegetables.
$ 19.99
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