Best Multi-Purpose Fertilisers for Rose of 2026

Name: Seaweed Rose Feed Spray 1L
Brand: READY STEADY DEFEND

Toby Butcher

Last Updated: 5 Feb 2026

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These multi-purpose fertilisers are designed to provide the necessary nutrients for healthy growth and blooming of roses. With a balanced blend of nitrogen, phosphorus, and potassium, these fertilisers promote strong roots, vibrant foliage, and abundant flowers. They also contain additional micronutrients that help to improve soil health and stabilise pH levels. Suitable for use on all types of roses, these fertilisers come in a variety of formulations, including liquid and granular options. Whether you're a seasoned gardener or a novice, these fertilisers are an excellent choice to help your roses thrive.

At a Glance: Our Top Picks

#TOP 1

Seaweed Rose Feed Spray 1L

9.8

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Seaweed Rose Feed Spray 1L

#TOP1

9.8

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#TOP 2

Renaissance Organic Plant Food - 3.62 kg Bag

9.7

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Renaissance Organic Plant Food - 3.62 kg Bag

#TOP2

9.7

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#TOP 3

Premium Rose and Flower Fertiliser

9.5

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Premium Rose and Flower Fertiliser

#TOP3

9.5

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Top 10 Multi-Purpose Fertilisers for Rose

#TOP 1

Seaweed Rose Feed Spray 1L

READY STEADY DEFEND

Seaweed Rose Feed Spray

Seaweed Rose Feed Spray 1L | Organic Liquid Fertiliser for Roses | Natural Seaweed Extract Plant Food | Promotes Healthy Blooms & Foliage | Ideal Rose Plant Feed for Indoor, Patio & Garden Roses

9.8

FTB Score

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Features

BOOSTS BLOOMS & FOLIAGE – Designed To Enhance Natural Colour And Vitality, This Seaweed Plant Food Encourages Abundant Flowering And Rich Green Leaves. Perfect For All Rose Types, From Garden Shrubs To Patio Pots, Ensuring Long-Lasting, Radiant Floral Displays.

NATURAL ROSE NOURISHMENT – Feed Your Roses With A Gentle Organic Formula Enriched With Pure Seaweed Extract. This Liquid Fertiliser Promotes Healthy Roots, Lush Foliage, And Vibrant Blooms, Giving Your Roses The Essential Nutrients Needed For Strong, Beautiful Growth.

READY TO USE & EASY TO APPLY – Shake Well And Spray Evenly Over Rose Leaves And Stems Until Lightly Coated. Apply Every 1–2 Weeks During The Growing Season To Maintain Healthy Blooms And Foliage. No Mixing Or Dilution Required, Just Spray And Grow.

PURE SEAWEED FORMULA – Made With Ascophyllum Nodosum, A Nutrient-Rich Seaweed Extract Naturally Containing Trace Minerals, Betaines, And Cytokinins That Support Healthy Plant Development. Provides A Clean, Chemical-Free Boost For Roses Of All Varieties.

ECO-FRIENDLY & SAFE – This Biodegradable Rose Feed Spray Is Safe For Pets, Pollinators, And Wildlife When Used As Directed. A Sustainable Alternative To Synthetic Fertilisers, Providing Environmentally Conscious Gardeners With Natural Rose Care All Year.

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#TOP 2

Renaissance Organic Plant Food - 3.62 kg Bag

Renaissance

OF01

3.62kg

Renaissance Organic Plant Food – 3.62 kg Bag – All Purpose Fertilizer for Outdoor & Indoor Gardens – Slow Release Natural Soil Fertiliser for House Plants, Vegetables, Fruit Trees, Roses and Grass

9.7

FTB Score

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Features

SLOW-RELEASE & FAST-ACTING ESSENTIALS : This Advanced Formula Delivers A Balanced Mix Of Nutrients That Release Gradually For Long-Term Feeding While Also Offering Components That Are Quickly Absorbed. The Houseplant Food Keeps Plants Nourished Throughout Their Entire Growth Cycle, Promoting Steady And Healthy Development, And Root Grow.

ORGANIC GENERAL-PURPOSE PLANT FOOD : Specially Formulated For Both Indoor And Outdoor Use, This Nutrient-Rich, General-Purpose Fertilizer Is Made Entirely From Organic Ingredients To Support Healthy, Natural Growth. Whether You're Nurturing A Balcony Herb Garden Or Cultivating A Full Outdoor Landscape, The Compost For Outdoor Plants Delivers Pure, Balanced Organic Nutrition Wherever Plants Grow.

PERFECT For INDOOR & OUTDOOR USE - WIDE RANGE Of APPLICATIONS : Suitable For Houseplants, Roses, Vegetables, Fruit Trees, Lawns, Legumes, And Even Industrial Crops. The Multi Purpose Compost Improves Soil's Moisture And Nutrient Retention, Balances pH Levels, And Strengthens Plants Against Frost And Drought.

ENHANCED FLAVOR & NUTRITION : Organomineral Composition Of The Plant Feed Encourages Robust Plant Growth And Enriches The Soil, Leading To Fruits And Vegetables That Are Richer In Flavor And Higher In Nutritional Value.

ECO-FRIENDLY & SOIL-ENRICHING : Made With An Environmentally Conscious Formulation That Enhances Soil Fertility, Boosts Root Development, And Improves Water Retention. The Renaissance Plant Food Naturally Supports Long-Term Soil Health, Making It Perfect For Sustainable Gardening Practices.

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#TOP 3

Premium Rose and Flower Fertiliser

dr forest

drff&v1

4.5kg (750g x 6)

Premium Rose and Flower Fertiliser | Slow-Release Natural Plant Food by Dr Forest | Compostable Packaging | Made with Organic Ingredients 4.5kg (750g x 6)

9.5

FTB Score

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Features

Increased Yield And Flavour: Rich In Phosphorus And Potassium For More Fruits Of Larger Size And Better Quality, With Micro-Nutrients Ensuring Sweet, Complex Flavours. Natural Growth Enzymes And Hormones From Scottish Seaweed And Diastatic Malted Barley Boost Overall Plant Vigour, Aroma, And Nutrient Density.

Balanced Nutrient Profile: Supplies Essential NPK Along With Calcium, Magnesium, Humic & Fulvic Acids, And Trace Micro-Nutrients (from Boron To Manganese) – Promoting Strong Vegetative Growth, Root Development, Fruit Set, And Enhanced Sweetness/flavour Without Excess Nitrogen Dilution.

Trace Mineral Boost: Enriched With Mineral-Rich Seaweed Meal, Basalt Rock Dust, And Clay Minerals – Providing Trace Elements That Elevate Antioxidants, Extend Bloom Life, And Improve Stress Resistance For More Prolific And Fragrant Flowers.

Premium Ingredients- We Only Use The Finest Ingredients Possible Whether That Is Micronised Rock Phosphate Which Due To Its Fine Particle Size Is Easy For The Plant To Uptake Or The Yorkshire Polyhalite Mineral Used At Wimbledon To Keep The Grass Green.

Organic & Sustainable – All Our Ingredients Are Certified Organic Fertilisers By Trusted Certification Providers Such As OMRI. We Source Our Ingredients From As Close To The UK As Possible. 100% Compostable Packaging (including Postage Packaging).

Multi-Input Fertiliser – Many Fertilisers Only Contain One Ingredient Which Is Normally A Waste Product. One Ingredient Does Not Contain All The Nutrients Essential For Plants Nor In The Required Amounts. Our Fertilisers Are Made Up Of Multiple Different Fertilisers Blended To Ensure They Are Perfectly Balanced And Provide Sustained Nutrient Release.

Local Sourcing – We Buy British Ingredients Where Possible Such As Our Scottish Seaweed And Yorkshire Polyhalite And Produce The Fertiliser On-Site In Cheshire.

Living Biology: Includes Fermented Biochar And Effective Microorganisms (EM) – Proven To Promote Plant Growth, Suppress Diseases, Enhance Microbial Diversity, And Boost Secondary Metabolites For Improved Bloom Vigour And Floral Aroma.

Build Soil Health – Non-Organic Fertilisers Contain Salt Which Makes The Nutrients Soluble. These Salts Build Up Over Prolonged Use And Start To Damage The Soil And Plant Health. This Is Why The Manufacturers Often Recommend Watering Until Water Comes Out Of The Bottom Of The Pot. This Flushes The Salts And Beneficial Micro-Organisms Out Of The Soil. Organic Fertilisers Promote Soil Health And Beneficial Micro Organisms Required For Optimum Plant Health.

Blend Of Fast And Slow-Release Nutrients: We Source Each Nutrient From Multiple Premium Inputs (e.g., Potassium From Potash, Polyhalite, Dried Worm Castings, Castor Meal, And Seaweed) For Immediate Availability Plus Sustained Release.

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#TOP 4

Elixir Gardens Bumper Crop Rose & Shrub Food

Elixir Gardens

BCRF

Resealable Tub

10kg

Elixir Gardens Bumper Crop Rose & Shrub Food Cover

Elixir Gardens Bumper Crop Rose & Shrub Food | N.P.K: 4-3-8+8Fe | Granular Perennial Flower & Bush Fertiliser with Added Iron & Magnesium for Top Dressing & Planting | 10kg Tub

9.5

FTB Score

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Features

Use As A Top-Dressing Too For Keeping Established Plants Strong, Healthy And Looking Their Best.

Expertly Crafted For Planting Or Transplanting Roses, Shrubs And Bushes.

Specially Formulated Blend Ensures Healthy Growth, Strong Root Systems And Large, Vibrant Blooms.

Premium, Compound Granules Disperse Nutrients Evenly Throughout The Soil.

A Full 25kg Bag Will Cover Up 700 Sq.m Of Soil When Applied At Our Recommended Rate Of 35g Per Sq.m.

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#TOP 5 Best Organic Multi-Purpose Fertiliser

Organic Bone Meal Fertiliser for Plants

Grow Chem

NPK 3-9-0

1kg Bucket

Organic Bone Meal Fertiliser for Plants Cover

Bone Meal for Plants, 1Kg Bucket, Multi-Purpose Plant Food Fertiliser, Organic All Purpose Garden Plant Fertiliser

9.3

FTB Score

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Grow Chem Bone Meal is an organic, slow-release fertiliser that enhances root strength and plant growth. With an NPK ratio of 3-9-0, it provides essential phosphorus, which is crucial for healthy plant development. This versatile fertiliser is perfect for a variety of plants, including bulbs, shrubs, and flowering varieties like roses and dahlias. You can use it throughout the growing season, ensuring that your garden thrives with robust fruits and vegetables, from strawberries to root crops.

What We Like

Organic and slow-release formula

Enhances root strength

Ideal for various plants

Easy phosphorus absorption

Suitable for all growing seasons

#TOP 6

Premium Rose & Flower Fertiliser

dr forest

drff&v1

1.5 kg (750g x 2)

Premium Rose & Flower Fertiliser | Slow-Release Natural Plant Food by Dr Forest | Compostable Packaging | Made with Organic Ingredients

9.1

FTB Score

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Features

Balanced Potassium Content - A Well-Proportioned Potassium Level Among Major Rose-Specific Organic Fertilisers – Linked To Documented Increases In Bloom Numbers (up To 30% More Buds), Flower Diameter/size, Aroma Intensity (e.g., Volatile Oils For Richer Scents), And Overall Display Quality.

Rose Specific NPK Ratio - Precise 5-3-5 Formulation – An Optimal Blend For Abundant Blooms And Aroma, With Moderate Nitrogen To Promote Sturdy Stems And Foliage Without Overgrowth, Low Phosphorus For Root Vitality And Bloom Initiation, And Balanced Potassium For Larger Flower Size, Increased Bud Count, And Enhanced Scent Volatiles (e.g., Geraniol And Citronellol For Rose Fragrance), Backed By Research On Rosa Spp. And Flowering Plant Nutrition.

UK Produced – We Buy British Ingredients Where Possible Such As Our Scottish Seaweed And Yorkshire Polyhalite And Produce The Fertiliser On-Site In Cheshire.

Trace Mineral Boost - Enriched With Mineral-Rich Seaweed Meal, Basalt Rock Dust, And Clay Minerals – Providing Trace Elements That Elevate Antioxidants, Extend Bloom Life, And Improve Stress Resistance For More Prolific And Fragrant Flowers.

Premium Ingredients - We Only Use The Finest Ingredients Possible Whether That Is Micronised Rock Phosphate Which Due To Its Fine Particle Size Is Easy For The Plant To Uptake Or The Yorkshire Polyhalite Mineral Used At Wimbledon To Keep The Grass Green.

Organic & Sustainable - All Our Ingredients Are Certified Organic Fertilisers By Trusted Certification Providers Such As The Soil Association And OMRI. We Source Our Ingredients From As Close To The UK As Possible. 100% Compostable Packaging (including Postage Packaging)

Multi-Input Fertiliser - Many Fertilisers Only Contain One Ingredient Which Is Normally A Waste Product. One Ingredient Does Not Contain All The Nutrients Essential For Plants Nor In The Required Amounts. Our Fertilisers Are Made Up Of Multiple Different Fertilisers Blended To Ensure They Are Perfectly Balanced And Provide Sustained Nutrient Release.

Low Phosphorus Emphasis - Supplies Moderate Phosphorus To Support Efficient Root Development And Bloom Set – Key For Maximizing Bud Production And Flower Size Without Nutrient Imbalances.

Handcrafted Quality - Made In The Stockport, UK In Small Batches By Hand, Ensuring Consistency And Care In Every Bag.

Build Soil Health - Non-Organic Fertilisers Contain Salt Which Makes Them Nutrient Soluble. These Salts Build Up Over Prolonged Use And Start To Damage The Soil And Plant Health. This Is Why The Manufacturers Often Recommend Watering Until Water Comes Out Of The Bottom Of The Pot. This Flushes The Salts And Beneficial Micro-Organisms Out Of The Soil. Organic Fertilisers Promote Soil Health And Beneficial Micro Organisms Required For Optimum Plant Health.

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#TOP 7

1LAfter Plant Rose Feed With Biostimulant

SuperGift.com

EMP-BIO

1LAfter Plant Rose Feed With Biostimulant Cover

1LAfter Plant Rose Feed With Biostimulant - Liquid Feed - Contains Nutrients Specifically Formulated To Benefit Evergreen Plants

8.9

FTB Score

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Features

Formulated With Biostimulants For Enhanced Nutrient Absorption: The Inclusion Of Biostimulants Boosts The Plant's Ability To Uptake Nutrients Effectively, Maximizing The Benefits Of Each Application And Leading To Visibly Healthier And More Vigorous Plants.

Supports Lush Foliage And Vibrant Blooms: Our Feed Is Expertly Crafted To Nourish Evergreen Plants, Encouraging Not Only Healthy Foliage But Also Ensuring Vibrant, Long-Lasting Blooms Throughout The Season.

Promotes Robust Growth And Plant Resilience: By Fostering Robust Growth, Our Formula Strengthens The Overall Health Of Your Plants, Enhancing Their Resilience Against Adverse Conditions Like Drought Or Disease, Ensuring They Thrive Year-Round.

Easy-To-Use Liquid Format For Quick Application And Effectiveness: The Liquid Formulation Of Our Feed Simplifies The Feeding Process, Allowing For Swift Absorption And Immediate Nourishment To The Plants, Making It Convenient For Both Novice And Experienced Gardeners Alike.

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#TOP 8 Best Miracle-Gro Multi-Purpose Fertiliser

Miracle Gro All Purpose Liquid Plant Food

Miracle-Gro

121175

800 mL

Miracle Gro All Purpose Liquid Plant Food Cover

Miracle Gro All Purpose Concentrated Liquid Plant Food, 800ml

8.9

FTB Score

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Miracle Gro Plant Food is designed to feed all types of plants instantly after application, ensuring they receive the nutrients they need right away. With its effective, nutrient-rich formula, you can expect bigger blooms and beautiful foliage, enhancing the overall look of your garden or indoor plants. The concentrated formula mixes effortlessly with water, saving you time and effort during your gardening tasks. This versatile product is suitable for both outdoor gardens and indoor houseplants, making it a convenient choice for all plant lovers.

What We Like

Instant feeding for all plants

Nutrient-rich for better blooms

Easy mixing with water

Suitable for indoor and outdoor use

#TOP 9

Vitax Q4 All Purpose Plant Food 2.5kg | Professional Pelleted Fertiliser with Organic Nutrients | Essential Trace Elements for Flowers, Fruit & Veg | High Yield Slow Release Garden & Rose Fertilizer

caprican

P 299

2.5kg

Vitax Q4 All Purpose Plant Food 2.5kg | Professional Pelleted Fertiliser with Organic Nutrients | Essential Trace Elements for Flowers, Fruit & Veg | High Yield Slow Release Garden & Rose Fertilizer

8.7

FTB Score

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Features

ORGANICALLY ENRICHED FORMULA: By Blending High-Quality Mineral Plant Foods With Organic Nutrients, Q4 Provides A Comprehensive Diet. This Unique Mix Ensures Rapid Initial Growth While The Organic Components Provide A Sustained, Slow-Release Energy Source.

THE EXHIBITION GARDENER'S CHOICE: Originally Developed For Commercial Horticulture, Vitax Q4 Is The Gold Standard For Achieving "Best In Show" Results. This 2.5kg Handy Pack Is Perfect For Homeowners Who Want Professional-Grade Blooms And High-Yield Vegetables In Smaller Spaces.

VITAL TRACE ELEMENT COMPLEX: Unlike Basic Fertilisers, Q4 Is Packed With Essential Trace Elements. These Micronutrients Are The Key To Preventing Leaf Yellowing And Ensuring Your Plants Have The Internal Strength To Resist Disease And Environmental Stress.

UNMATCHED VERSATILITY: The Ultimate All-In-One Solution. From Feeding High-Demand Roses And Tomatoes To Revitalizing Fruit Bushes And Flower Containers, Q4 Eliminates The Need For Multiple Specialist Products, Simplifying Your Garden Maintenance.

CLEAN & EASY PELLETED FORMAT: Our Low-Dust, Easy-To-Handle Pellets Ensure Precise Application Every Time. Simply Scatter Around The Base Of Plants Or Work Into The Soil During Planting For A Mess-Free, High-Performance Nutrient Boost.

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#TOP 10

Miracle-Gro Continuous Release All Purpose Plant Food

Miracle-Gro

121066

White

Miracle-Gro Continuous Release All Purpose Plant Food Cover

Miracle-Gro Continuous Release All Purpose Plant Food, 900G, White

8.5

FTB Score

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Miracle-Gro Plant Food features a temperature-controlled coating that ensures nutrients are released when conditions are ideal for feeding your plants. By applying it just once at the start of spring, you can nourish your plants for the entire season, eliminating the hassle of regular feedings. This product is packed with essential nutrients, promoting strong and healthy growth. It's perfect for anyone looking to simplify their gardening routine while ensuring their plants thrive throughout the season.

What We Like

Convenient one-application feeding

Temperature-controlled nutrient release

Supports healthy plant growth

Suitable for all-purpose use

Frequently Asked Questions (FAQs)

1. Can roses have all purpose fertilizer?

There are special rose plant foods that are tailored to the higher phosphorus needs of roses, with an N-P-K ratio such as 18-24-16. But, you don't necessarily need to get a special fertilizer for your roses. You can also use a general complete fertilizer with a high phosphorus ratio, such as 5-10-5, 4-8-4, or 4-12-4.

2. Is all purpose miracle grow good for roses?

Miracle-Gro Water Soluble Rose Plant Food promotes beautiful blooms and lush foliage. It starts to work instantly for quick, beautiful results. Ideal for all types of roses. Easy to use with the Miracle-Gro Garden Feeder or your watering can.

Editor's Notes

During our multi-purpose fertiliser for rose research, we found 146 multi-purpose fertiliser for rose products and shortlisted 10 quality products. We collected and analyzed 58,829 customer reviews through our big data system to write the multi-purpose fertilisers for rose list. We found that most customers choose multi-purpose fertilisers for rose with an average price of £5.92.

The multi-purpose fertilisers for rose are available for purchase. We have researched hundreds of brands and picked the top brands of multi-purpose fertilisers for rose, including READY STEADY DEFEND, Renaissance, dr forest, Elixir Gardens, Grow Chem.

Written by

Toby Butcher

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.