Best Plant Food Outdoor Trees of 2026

Last updated on 03/04/2026
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1
envii SeaFeed Xtra – Organic Liquid Seaweed Fertiliser, Outdoor Plant Food Ideal for all Plants, Lawns, Gardens and House Plants, Rich in Additional Nutrients - 5 Litre
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envii SeaFeed Xtra – Organic Liquid Seaweed Fertiliser, Outdoor Plant Food Ideal for all Plants, Lawns, Gardens and House Plants, Rich in Additional Nutrients - 5 Litre

envii
Why we love it
  • Promotes strong plant growth.
  • High concentration, unique compounds.
  • Includes extra iron, amino acids.
Main Highlights
  • Boosts Plant Growth & Crop Yields - Natural Seaweed fertiliser that enhances strong & healthy plant growth, promotes lush foliage, and increases crop yields for thriving plants.
  • Nutrient Rich Plant Food - Enriched with iron and plant-based amino acids to nourish garden plants, improve soil health, and support plant & root development.
  • Versatile & All Purpose - Ideal for lawns, fruits, vegetables, flowers, trees, and all other garden plants. Perfect for any outdoor or indoor plants.
  • 100% Organic & Vegan - Seafeed Xtra is made from natural, sustainably sourced ingredients & certified Organic by OF&G.
  • Different Sizes: Our feeds are available in a variety of sizes ranging from 5L, 10L & 20L. You can choose the perfect fit for your needs.
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9.8
Exceptional
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9.8
Exceptional
envii

envii SeaFeed Xtra – Organic Liquid Seaweed Fertiliser, Outdoor Plant Food Ideal for all Plants, Lawns, Gardens and House Plants, Rich in Additional Nutrients - 5 Litre

Why we love it
  • Promotes strong plant growth.
  • High concentration, unique compounds.
  • Includes extra iron, amino acids.
Main Highlights
  • Boosts Plant Growth & Crop Yields - Natural Seaweed fertiliser that enhances strong & healthy plant growth, promotes lush foliage, and increases crop yields for thriving plants.
  • Nutrient Rich Plant Food - Enriched with iron and plant-based amino acids to nourish garden plants, improve soil health, and support plant & root development.
  • Versatile & All Purpose - Ideal for lawns, fruits, vegetables, flowers, trees, and all other garden plants. Perfect for any outdoor or indoor plants.
  • 100% Organic & Vegan - Seafeed Xtra is made from natural, sustainably sourced ingredients & certified Organic by OF&G.
  • Different Sizes: Our feeds are available in a variety of sizes ranging from 5L, 10L & 20L. You can choose the perfect fit for your needs.
Show More
Value for Money
2
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
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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

envii
Why we love it
  • Promotes strong plant growth.
  • Multi-purpose with added extras.
  • Easy application process.
Main Highlights
  • Boosts Plant Growth & Crop Yields - Natural Seaweed fertiliser that enhances strong & healthy plant growth, promotes lush foliage, and increases crop yields for thriving plants.
  • Nutrient Rich Plant Food - Enriched with iron and plant-based amino acids to nourish garden plants, improve soil health, and support plant & root development.
  • Versatile & All Purpose - Ideal for lawns, fruits, vegetables, flowers, trees, and all other garden plants. Perfect for any outdoor or indoor plants.
  • 100% Organic & Vegan - Seafeed Xtra is made from natural, sustainably sourced ingredients & certified Organic by OF&G.
  • User Friendly Design: Comes with an easy-to-use bottle featuring a built-in measuring chamber for hassle-free application. One litre of Seafeed Xtra makes up to 500 litres of feed when diluted, suited for all size gardens.
Show More
9.7
Exceptional
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9.7
Exceptional
envii

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

Why we love it
  • Promotes strong plant growth.
  • Multi-purpose with added extras.
  • Easy application process.
Main Highlights
  • Boosts Plant Growth & Crop Yields - Natural Seaweed fertiliser that enhances strong & healthy plant growth, promotes lush foliage, and increases crop yields for thriving plants.
  • Nutrient Rich Plant Food - Enriched with iron and plant-based amino acids to nourish garden plants, improve soil health, and support plant & root development.
  • Versatile & All Purpose - Ideal for lawns, fruits, vegetables, flowers, trees, and all other garden plants. Perfect for any outdoor or indoor plants.
  • 100% Organic & Vegan - Seafeed Xtra is made from natural, sustainably sourced ingredients & certified Organic by OF&G.
  • User Friendly Design: Comes with an easy-to-use bottle featuring a built-in measuring chamber for hassle-free application. One litre of Seafeed Xtra makes up to 500 litres of feed when diluted, suited for all size gardens.
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3
Miracle-Gro All Purpose Water Soluble Plant Food Tub, 2 kg
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Miracle-Gro All Purpose Water Soluble Plant Food Tub, 2 kg

Miracle-Gro
19% Off
Why we love it
  • Trusted by nationwide gardeners.
  • Promotes doubled plant growth.
  • Easy application process.
Main Highlights
  • Grows plants twice as big (versus unfed plants)
  • One application feeds plants for up to 6 months, removing the need for regular feeding.
  • Unique coating enables the feed to be continuously released when plants are actively growing.
  • Ideal for all plants, indoors and outside. Perfect for posts & containers, hanging baskets, beds & borders.
  • Packaging may vary
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9.5
Superb
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9.5
Superb
Miracle-Gro

Miracle-Gro All Purpose Water Soluble Plant Food Tub, 2 kg

19% Off
Why we love it
  • Trusted by nationwide gardeners.
  • Promotes doubled plant growth.
  • Easy application process.
Main Highlights
  • Grows plants twice as big (versus unfed plants)
  • One application feeds plants for up to 6 months, removing the need for regular feeding.
  • Unique coating enables the feed to be continuously released when plants are actively growing.
  • Ideal for all plants, indoors and outside. Perfect for posts & containers, hanging baskets, beds & borders.
  • Packaging may vary
Show More
4
GREEN24 Tree and Shrub Liquid Fertilizer HighTech NPK, Root Soil Foliar Plant Food
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GREEN24 Tree and Shrub Liquid Fertilizer HighTech NPK, Root Soil Foliar Plant Food

GREEN24
Why we love it
  • For healthy and bright leaves.
  • Rapid effects for quick results.
  • Developed by expert gardeners.
Main Highlights
  • Professional Liquid Fertilizer for: Deciduous Tree and Deciduous Shrub
  • This food for plants belongs to the latest generation of fertilizers, for healthy and bright green leaves, stable branches, strong bud formation, balanced rooting.
  • Very rapid effects, can be administered via the roots and as a foliar fertilizer. For 60-125 liters of ready to use liquid fertilizer
  • Content: 250 ml, works as an economical concentrate. Simple dosage with the help of the cap.
  • The fertilizers from the GREEN24 PROFI LINE were developed by gardeners of various departments and were evolved and produced based on the current knowledge in the field of propagation and cultivation of plants.
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9.3
Superb
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9.3
Superb
GREEN24

GREEN24 Tree and Shrub Liquid Fertilizer HighTech NPK, Root Soil Foliar Plant Food

Why we love it
  • For healthy and bright leaves.
  • Rapid effects for quick results.
  • Developed by expert gardeners.
Main Highlights
  • Professional Liquid Fertilizer for: Deciduous Tree and Deciduous Shrub
  • This food for plants belongs to the latest generation of fertilizers, for healthy and bright green leaves, stable branches, strong bud formation, balanced rooting.
  • Very rapid effects, can be administered via the roots and as a foliar fertilizer. For 60-125 liters of ready to use liquid fertilizer
  • Content: 250 ml, works as an economical concentrate. Simple dosage with the help of the cap.
  • The fertilizers from the GREEN24 PROFI LINE were developed by gardeners of various departments and were evolved and produced based on the current knowledge in the field of propagation and cultivation of plants.
Show More
5
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
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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

Renaissance
Why we love it
  • Organic nutrients for healthy growth.
  • Easy to use for optimal results.
  • Supports sustainable and eco-friendly gardening.
Main Highlights
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
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9.1
Superb
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9.1
Superb
Renaissance

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

Why we love it
  • Organic nutrients for healthy growth.
  • Easy to use for optimal results.
  • Supports sustainable and eco-friendly gardening.
Main Highlights
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
Show More
6
Envii Allgrow, Organic Multipurpose Fertiliser Plant Feed - Liquid Outdoor Plant Food, Suitable for All Plants (1L)
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Envii Allgrow, Organic Multipurpose Fertiliser Plant Feed - Liquid Outdoor Plant Food, Suitable for All Plants (1L)

envii
Why we love it
  • Supports plants throughout growing cycle.
  • Improves crop yield and health.
  • Certified organic and vegan-friendly.
Main Highlights
  • Multipurpose Plant Food – Suitable for use on all indoor and outdoor plants, Allgrow provides all the macro nutrients required to help plants thrive & supports them throughout the growing cycle.
  • Suitable for All Plants – Due to our unique ingredients, Allgrow is ready to use on all plants, enhancing soil quality & providing nutrients & minerals for plant growth all year round
  • NPK – Allgrow is a balanced feed with a nitrogen- phosphorus- potassium (N-P-K) ratio of 6-2-4. This helps increase crop yield and improves plants health.
  • Certified Organic & Vegan Friendly – Made from natural and mineral based ingredients, Allgrow is certified organic & Vegan Friendly making this safe for all pets, children, bees, and all other wildlife.
  • Easy to use – Simply mix 15ml of Allgrow in 5 litres of water and apply to the base of your plants.
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8.9
Excellent
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8.9
Excellent
envii

Envii Allgrow, Organic Multipurpose Fertiliser Plant Feed - Liquid Outdoor Plant Food, Suitable for All Plants (1L)

Why we love it
  • Supports plants throughout growing cycle.
  • Improves crop yield and health.
  • Certified organic and vegan-friendly.
Main Highlights
  • Multipurpose Plant Food – Suitable for use on all indoor and outdoor plants, Allgrow provides all the macro nutrients required to help plants thrive & supports them throughout the growing cycle.
  • Suitable for All Plants – Due to our unique ingredients, Allgrow is ready to use on all plants, enhancing soil quality & providing nutrients & minerals for plant growth all year round
  • NPK – Allgrow is a balanced feed with a nitrogen- phosphorus- potassium (N-P-K) ratio of 6-2-4. This helps increase crop yield and improves plants health.
  • Certified Organic & Vegan Friendly – Made from natural and mineral based ingredients, Allgrow is certified organic & Vegan Friendly making this safe for all pets, children, bees, and all other wildlife.
  • Easy to use – Simply mix 15ml of Allgrow in 5 litres of water and apply to the base of your plants.
Show More
7
Miracle-Gro Continuous Release All Purpose Plant Food, 900G, White
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Miracle-Gro Continuous Release All Purpose Plant Food, 900G, White

Miracle-Gro
19% Off
Why we love it
  • Temperature controlled nutrient release.
  • Feeds plants all season.
  • Essential nutrients for health.
Main Highlights
  • 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
  • Contains essential nutrients for strong healthy plants
  • Model number: 121066
Show More
8.9
Excellent
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8.9
Excellent
Miracle-Gro

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

19% Off
Why we love it
  • Temperature controlled nutrient release.
  • Feeds plants all season.
  • Essential nutrients for health.
Main Highlights
  • 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
  • Contains essential nutrients for strong healthy plants
  • Model number: 121066
Show More
8
Phostrogen All Purpose Plant Food, 800g - Plant and Edibles Fertiliser Feed - for Promoting Healthy Growth - Improves Drought Resistance - Plant Nutrition - Indoor and Garden Use
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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
16% Off
Why we love it
  • Promotes stronger, healthier plants.
  • Boosts drought resistance.
  • Versatile and user-friendly.
Main Highlights
  • PLANT NUTRITION: Provides a convenient all-purpose boost to all indoor and outdoor plants, promoting healthier green foliage, vibrant flowers, and bigger, better fruit
  • STRONG AND HEALTHY: Phostrogen's formula improves your plants draught resistance and encourages the development of a strong and healthy root system
  • GROWTH STIMULANT: Ideal for supporting healthy seedlings and established plants growth
  • SUITABLE FOR: Can be used on edible crops, fruit trees, young plants, seedlings and even houseplants
  • EASY TO USE: Handy measuring scoop provided for pouring the easily dissolved granules in your watering can
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8.8
Excellent
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8.8
Excellent
Phostrogen

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

16% Off
Why we love it
  • Promotes stronger, healthier plants.
  • Boosts drought resistance.
  • Versatile and user-friendly.
Main Highlights
  • PLANT NUTRITION: Provides a convenient all-purpose boost to all indoor and outdoor plants, promoting healthier green foliage, vibrant flowers, and bigger, better fruit
  • STRONG AND HEALTHY: Phostrogen's formula improves your plants draught resistance and encourages the development of a strong and healthy root system
  • GROWTH STIMULANT: Ideal for supporting healthy seedlings and established plants growth
  • SUITABLE FOR: Can be used on edible crops, fruit trees, young plants, seedlings and even houseplants
  • EASY TO USE: Handy measuring scoop provided for pouring the easily dissolved granules in your watering can
Show More
9
Empathy Bio-active natural plant food for Olive Trees, 1kg
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Empathy Bio-active natural plant food for Olive Trees, 1kg

Empathy the biological choice
5% Off
Why we love it
  • Natural nutrition for happy plants.
  • Strengthens soil health significantly.
  • Boosts plant resistance to diseases.
Main Highlights
  • Natural plant food
  • Provides essential nutrients
  • Perfect for peat free compost
  • Encourages stronger and healthier plant growth
  • Enriches the soil biology for long lasting benefits
  • Increased resistance to disease
  • Contains rootgrow mycorrhizal fungi
Show More
8.7
Excellent
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8.7
Excellent
Empathy the biological choice

Empathy Bio-active natural plant food for Olive Trees, 1kg

5% Off
Why we love it
  • Natural nutrition for happy plants.
  • Strengthens soil health significantly.
  • Boosts plant resistance to diseases.
Main Highlights
  • Natural plant food
  • Provides essential nutrients
  • Perfect for peat free compost
  • Encourages stronger and healthier plant growth
  • Enriches the soil biology for long lasting benefits
  • Increased resistance to disease
  • Contains rootgrow mycorrhizal fungi
Show More
10
Miracle-Gro Premium Rose & Shrub Continuous Release Plant Food, 900G
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Miracle-Gro Premium Rose & Shrub Continuous Release Plant Food, 900G

Miracle-Gro
23% Off
Why we love it
  • Temperature control optimizes nutrient release.
  • One application lasts entire season.
  • Essential nutrients promote plant health.
Main Highlights
  • 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
  • Contains essential nutrients for strong healthy plants
  • Model number: 121068
Show More
8.7
Excellent
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8.7
Excellent
Miracle-Gro

Miracle-Gro Premium Rose & Shrub Continuous Release Plant Food, 900G

23% Off
Why we love it
  • Temperature control optimizes nutrient release.
  • One application lasts entire season.
  • Essential nutrients promote plant health.
Main Highlights
  • 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
  • Contains essential nutrients for strong healthy plants
  • Model number: 121068
Show More

We scanned 883 products

We reviewed these offers relevant to the Plant Food Outdoor Trees within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like envii, Miracle-Gro, GREEN24, Renaissance, Phostrogen, Empathy the biological choice, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Plant Food Outdoor Trees in the market, we considered we took a deep dive into 4416 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that: