WhichOne › DIY store & garden › plant › fertiliser › flower fertiliser › hydrangea fertiliser

The best hydrangea fertilisers in comparison

Guaranteed independent and reliable
Millions of satisfied users every year
Last updated on 29.06.2025

Filter

Sort

Brand:Reduced items only:

Best choice

Miracle-Gro 121180 Azelia, Camellia & Rhododendron Concentrated Plant Food, 800 ml, Natural

26% off

free shipping

9,9

Offer ends in:

05Days

07hours

33minutes

25seconds

Check price

Show on Amazon

show more show less

Features

Provides essential nutrients to a wide variety of plants, including flowers, vegetables, trees, and shrubs
The formula contains a balanced blend of fast-acting and slow-release nutrients
Effective in promoting healthy growth, strong roots, and vibrant blooms or foliage

Miracle Gro Premium Azalea, Camellia and Rhododendron Continuous Release Plant Food, White

35% off

free shipping

9,8

Check price

Show on Amazon

show more show less

Features

Temperature controlled coating that regulates the release of nutrients when the conditions are right for feeding
One application at the start of spring will feed your plants for the whole season, removing the need for regular feeding
Model number 121065

Westland Hydrangea Colourant, 500 g

10% off

free shipping

9,7

Check price

Show on Amazon

show more show less

Features

Model number 20600082
Changes dark pink hydrangeas to mauve blue

Westland 20100444 Hydrangea High Performance Liquid Plant Food 1 Litre, Green

5% off

free shipping

9,7

Check price

Show on Amazon

show more show less

Features

Added Iron helps nutrient availability in all pH soils
Germination time 14.0 days
Moisture control booster helps to avoid drought

Miracle-Gro Rose & Shrub Concentrated Plant Food, 800 ml

26% off

free shipping

9,7

Offer ends in:

05Days

07hours

33minutes

25seconds

Check price

Show on Amazon

show more show less

Features

Effective in improving plant health and growth, as well as enhancing the color and quality of blooms.
The plant food is suitable for all types of roses and shrubs, including both indoor and outdoor plants

Westland 20600098 Growmore Balanced Garden Fertiliser For All Plants, 4 kg, Natural

free shipping

9,6

Check price

Show on Amazon

show more show less

Features

This product is available a 1.5 kg, 4 kg and 10 kg, established plants will require 140g - 175g per sq. M
Grow more can be used to feed flowers, fruit, trees, shrubs and vegetables
Apply grow more every 4 -6 weeks to maintain best plant quality and soil fertility
Grow more has an NPK fertiliser of 7 - 7 -7

Westland Ericaceous High Performance Liquid Plant Food 1 Litre, Green

free shipping

9,5

Check price

Show on Amazon

show more show less

Features

An essential iron source to help nourish plants
Germination time 14.0 days
Magnesium for greener and glossier foliage

Phostrogen All Purpose Plant Food, 800g - Plant and Edibles Fertiliser Feed - for Promoting Healthy Growth - Improves Drought Resistance - Plant Nutrition - Indoor and Garden Use

Phostrogen

46% off

free shipping

9,5

Check price

Show on Amazon

show more show less

Features

PLANT NUTRITION Provides a convenient all-purpose boost to all indoor and outdoor plants, promoting healthier green foliage, vibrant flowers, and bigger, better fruit
EASY TO USE Handy measuring scoop provided for pouring the easily dissolved granules in your watering can
GROWTH STIMULANT Ideal for supporting healthy seedlings and established plants growth

Recommendation

AMK® Vitax Hydrangea Feed 1kg Fertiliser Plant Food for Strong Healthy Growth Vibrant Blooms Flowers Granular Application

AMK

9,4

Check price

Show on Amazon

show more show less

Features

SUITABLE FOR ALL HYDRANGEA VARIETIES Can be used on a wide range of hydrangea varieties, including mophead, lacecap, and paniculata types, as well as others. This versatility makes it a convenient all-in-one feed solution.
PROMOTES VIBRANT BLOOMS Encourages the development of large, vibrant, and intensely colored blooms. The formula helps to enhance the natural color of your hydrangeas, whether pink, blue, or purple, providing a spectacular show.
CONTAINS ESSENTIAL NUTRIENTS Provides a balanced blend of essential nutrients, including nitrogen, phosphorus, and potassium, along with vital trace elements, to support all aspects of healthy plant growth and development.
1KG PACK FOR MULTIPLE APPLICATIONS The 1kg pack provides enough feed for multiple applications throughout the growing season, making it a cost-effective solution for maintaining healthy hydrangeas and ensuring you have enough for a long period.
IMPROVES SOIL CONDITION Regular use of a balanced fertiliser like this can, over time, contribute to improving the overall health and structure of the soil, creating a better growing environment for your hydrangeas roots and growth.
VITAX BRAND QUALITY AND RESULTS From Vitax, a long-established and trusted brand in garden care and fertilizers. This Hydrangea Feed is backed by years of expertise and a commitment to providing quality, effective products.

Westland Boost Slow Release Plant Food 2kg, Blue

free shipping

9,4

Check price

Show on Amazon

show more show less

Features

Slow release feed for 6-moth nutrient supply helps boost disease resistance
Targeted nitrogen feed will give lush green foliage
High potassium levels will promote flowering, fruit production and plant resilience

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

You might also be interested in these hydrangea fertilisers.

Vitax Hydrangea Feed 1KG (4)

Vitax Ltd

~~£ 23.95~~ free shipping

Check price

Bronte Ericaceous Plant Food - 1L Bottle of Concentrated Organic, Seaweed-Enriched Azalea, Camellia & Rhododendron Fertiliser. Pet-Friendly, UK Made, Boosts Flowering & Growth in Acid-Loving Plants

ORGANIC POWER, MAXIMUM IMPACT Imagine the satisfaction of seeing your azaleas, camellias, and rhododendrons bloom like never before! Our 1L bottle of concentrated, plant-based fertiliser makes up to 500 litres of feed, meaning every drop works wonders. You'll love the proud moment when your plants flourish, knowing you ve nourished them with a completely organic and eco-friendly solution.

Check price

Maxicrop PPSI61L Sequestered Iron, 1L - Iron Infused Natural Seaweed Extract - Protects Against Yellowing - Supports Growth In Difficult Soil Conditions - Plant Nutrition, Blue

ORGANIC Approved and certified for organic growing by the Soil Association

free shipping

Check price

Maxicrop All Purpose Plant Growth Stimulant, 1L - Natural Seaweed Based Liquid Biostimulant - Multivitamin Boost for All Garden Plants - Strong Roots - Healthy Growth - Builds Resilient Crops

GROWTH STIMULANT A powerful natural plant growth stimulant with added seaweed extract that brings out the best in your plants

free shipping

Check price

envii SeaFeed Xtra – Organic Seaweed Fertiliser, Liquid Outdoor Plant Food Ideal for all Plants, Lawns, Gardens and House Plants, Rich in Additional Nutrients - 1 Litre Makes up to 500L

Boosts Plant Growth & Crop Yields - Natural Seaweed fertiliser that enhances strong & healthy plant growth, promotes lush foliage, and increases crop yields for thriving plants.

Check price

Baby Bio Houseplant Food, 175ml- Fertiliser for Growing Vibrant and Healthy Plants - Easy To Use House Plant Care - Concentrate Plant Food - Indoor Use Plant Nutrition

NOTE This product does not have an expiry date, the date on the product is the manufacturing date

~~£ 4.76~~ free shipping

Check price

Goulding G60114 Slow Release Fertiliser General Purpose Granular Plant Feed, Brown

720g

~~£ 7.49~~ free shipping

Check price

Westland 20600027 Sulphate of Iron Plant Food for Ericaceous Plants, 1.5 kg

Prevents leaf yellowing

free shipping

Check price

Vitax Hydrangea Colourant 500g – Enhances Blue Colour in Hydrangeas – Easy-to-Use Garden Formula for Vibrant Blooms

Optimized for Acidic Soils Delivers best results in acidic soils where aluminum is readily available. For alkaline soils, simply double the application to achieve the same vivid effects.

Check price

TOPLINE Westland Hydrangea Liquid Plant Food - Pack of 2 x 1L High - Performance Hydrangea Flower Feed with Topline Card. Garden Fertiliser for Plants,, Clear Liquid

Westland Horticultural Garden Plant Food Bulk Buy - Pack of 2 x 1L High-Performance Hydrangea Liquid Plant Feed with unique TOPLINE Thank You Card. A specially tailored feed that provides all the essential nutrients that hydrangeas need to flourish.

free shipping

Check price

Maxicrop All Purpose Plant Growth Stimulant, 2.5L - Natural Seaweed Based Liquid Biostimulant - Multivitamin Boost for All Garden Plants - Strong Roots - Healthy Growth - Builds Resilient Crops

GROWTH STIMULANT A powerful natural plant growth stimulant with added seaweed extract that brings out the best in your plants

~~£ 21.52~~ free shipping

Check price

MARPHYL Organic Liquid Fertiliser - Indoor Plant Food - Nutrient rich Seaweed Liquid Fertilizer- All Purpose Liquid Fertiliser for indoor Plants, Flowers, Vegetables, Succulents, Bamboo, Hydroponics

Superior Liquid Plant Food - MARPHYL Marine Phytoplankton is ideal as an outdoor and indoor plant fertilizer. It's an excellent vegetable fertilizer, houseplant fertilizer, and garden fertilizer. It's great for your lawn, greenhouse, and hydroponics. Enjoy gorgeous, colorful blooms with this exceptional plant food. Enhance soil quality and watch your trees, shrubs, vines, grass, plants, flowers, and vegetables thrive.

Check price

The best hydrangea fertilisers in comparison

Guaranteed independent and reliable

Features

Features

Features

Features

Features

Features

Features

Features

Features

Features

You might also be interested in these hydrangea fertilisers.

Our offer