Best Plant Food Outdoor Granules Slow Release of 2026

Last updated on 03/04/2026
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1
Grow More Plant Food Fertilizer - 2kg All Purpose 6-Month Slow Release Plant Food Granules for Outdoor Plants with Topline Card. Garden Fertiliser for Plants, Vegetables or Houseplants
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Grow More Plant Food Fertilizer - 2kg All Purpose 6-Month Slow Release Plant Food Granules for Outdoor Plants with Topline Card. Garden Fertiliser for Plants, Vegetables or Houseplants

Topline
Why we love it
  • Feeds for 6 months.
  • Boosts flowers and roots.
  • Suitable for all plants.
Main Highlights
  • Indoor or outdoor garden plants feed bulk buy contains: 1 x 2kg Grow more All Purpose 6-months Plant Food with unique Topline Thank You Card. All-Purpose Slow Release Plant Food for use all around the garden. Providing a slow release of food to keep plants healthy and thriving for longer.
  • Slow Release Plant Food granules is a blend of slow release and fast acting nutrients to keep plants healthy, and thriving for longer. Is a great food for flowers, fruits, vegetables, roses, shrubs and trees in containers.
  • The fast acting nutrients boost flowers and root growth, whilst the slow release nutrients feed the plant for 6 months and promote a healthy foliage and long lasting blooms. Suitable for all plants and great for baskets and containers.
  • A blend of slow-releasing granules, plus fast-acting plant food providing nutrients when plants need it most.
  • The plant pellets can be premixed with compost, top soil before planting, added to the planting hole area or used as a top dressing. Water in the granules to activate.
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9.8
Exceptional
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9.8
Exceptional
Topline

Grow More Plant Food Fertilizer - 2kg All Purpose 6-Month Slow Release Plant Food Granules for Outdoor Plants with Topline Card. Garden Fertiliser for Plants, Vegetables or Houseplants

Why we love it
  • Feeds for 6 months.
  • Boosts flowers and roots.
  • Suitable for all plants.
Main Highlights
  • Indoor or outdoor garden plants feed bulk buy contains: 1 x 2kg Grow more All Purpose 6-months Plant Food with unique Topline Thank You Card. All-Purpose Slow Release Plant Food for use all around the garden. Providing a slow release of food to keep plants healthy and thriving for longer.
  • Slow Release Plant Food granules is a blend of slow release and fast acting nutrients to keep plants healthy, and thriving for longer. Is a great food for flowers, fruits, vegetables, roses, shrubs and trees in containers.
  • The fast acting nutrients boost flowers and root growth, whilst the slow release nutrients feed the plant for 6 months and promote a healthy foliage and long lasting blooms. Suitable for all plants and great for baskets and containers.
  • A blend of slow-releasing granules, plus fast-acting plant food providing nutrients when plants need it most.
  • The plant pellets can be premixed with compost, top soil before planting, added to the planting hole area or used as a top dressing. Water in the granules to activate.
Show More
Value for Money
2
Gro-Sure All Purpose Slow Release Plant Food Dual Action Granules for Long-Lasting Blooms Slow Release Nutrients Ideal for Flowers, Fruits & Vegetables Feeds for 6 Months (1.65Kg Box)
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Gro-Sure All Purpose Slow Release Plant Food Dual Action Granules for Long-Lasting Blooms Slow Release Nutrients Ideal for Flowers, Fruits & Vegetables Feeds for 6 Months (1.65Kg Box)

TOP SAVER
Why we love it
  • Long-lasting blooms enhance beauty.
  • Versatile for all plant types.
  • Easy to use for gardening.
Main Highlights
  • 🌱 Long-Lasting Blooms: Promotes vibrant, long-lasting flowers by supporting healthy root systems and foliage growth.
  • 🌱 Ideal for All Plants: Suitable for a wide range of plants including flowers, fruits, vegetables, trees, and shrubs, ensuring versatility in your garden.
  • 🌱 Perfect for Baskets & Containers: Specially designed for pots, tubs, hanging baskets, and garden beds, making it a great choice for all types of gardening.
  • 🌱 Easy to Use: Can be premixed with compost, added to planting holes, or used as a top dressing, offering a simple solution for feeding plants.
  • 🌱 Boosts Root & Flower Growth: The fast-acting nutrients provide an instant boost to roots and flowers, helping plants grow stronger and healthier from the start.
Show More
9.8
Exceptional
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9.8
Exceptional
TOP SAVER

Gro-Sure All Purpose Slow Release Plant Food Dual Action Granules for Long-Lasting Blooms Slow Release Nutrients Ideal for Flowers, Fruits & Vegetables Feeds for 6 Months (1.65Kg Box)

Why we love it
  • Long-lasting blooms enhance beauty.
  • Versatile for all plant types.
  • Easy to use for gardening.
Main Highlights
  • 🌱 Long-Lasting Blooms: Promotes vibrant, long-lasting flowers by supporting healthy root systems and foliage growth.
  • 🌱 Ideal for All Plants: Suitable for a wide range of plants including flowers, fruits, vegetables, trees, and shrubs, ensuring versatility in your garden.
  • 🌱 Perfect for Baskets & Containers: Specially designed for pots, tubs, hanging baskets, and garden beds, making it a great choice for all types of gardening.
  • 🌱 Easy to Use: Can be premixed with compost, added to planting holes, or used as a top dressing, offering a simple solution for feeding plants.
  • 🌱 Boosts Root & Flower Growth: The fast-acting nutrients provide an instant boost to roots and flowers, helping plants grow stronger and healthier from the start.
Show More
3
Westland Boost Slow Release Plant Food 2kg
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Westland Boost Slow Release Plant Food 2kg

Westland
7% Off
Why we love it
  • Boosts root growth effectively.
  • Promotes lush green foliage.
  • Enhances flowering and resilience.
Main Highlights
  • Instant nutrients and bio-stimulant will boost root growth
  • Targeted nitrogen feed will give lush green foliage
  • Slow release feed for 6-moth nutrient supply helps boost disease resistance
  • High potassium levels will promote flowering, fruit production and plant resilience
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9.6
Superb
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9.6
Superb
Westland

Westland Boost Slow Release Plant Food 2kg

7% Off
Why we love it
  • Boosts root growth effectively.
  • Promotes lush green foliage.
  • Enhances flowering and resilience.
Main Highlights
  • Instant nutrients and bio-stimulant will boost root growth
  • Targeted nitrogen feed will give lush green foliage
  • Slow release feed for 6-moth nutrient supply helps boost disease resistance
  • High potassium levels will promote flowering, fruit production and plant resilience
Show More
4
Gro-Sure All Purpose Slow Release Plant Food Dual Action Granules for Long-Lasting Blooms Slow Release Nutrients Ideal for Flowers, Fruits & Vegetables Feeds for 6 Months (1.1Kg Jar)
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Gro-Sure All Purpose Slow Release Plant Food Dual Action Granules for Long-Lasting Blooms Slow Release Nutrients Ideal for Flowers, Fruits & Vegetables Feeds for 6 Months (1.1Kg Jar)

TOP SAVER
Why we love it
  • Long-lasting blooms enhance gardens.
  • Versatile for all plant types.
  • Easy application for any gardener.
Main Highlights
  • 🌱 Long-Lasting Blooms: Promotes vibrant, long-lasting flowers by supporting healthy root systems and foliage growth.
  • 🌱 Ideal for All Plants: Suitable for a wide range of plants including flowers, fruits, vegetables, trees, and shrubs, ensuring versatility in your garden.
  • 🌱 Perfect for Baskets & Containers: Specially designed for pots, tubs, hanging baskets, and garden beds, making it a great choice for all types of gardening.
  • 🌱 Easy to Use: Can be premixed with compost, added to planting holes, or used as a top dressing, offering a simple solution for feeding plants.
  • 🌱 Boosts Root & Flower Growth: The fast-acting nutrients provide an instant boost to roots and flowers, helping plants grow stronger and healthier from the start.
Show More
9.5
Superb
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9.5
Superb
TOP SAVER

Gro-Sure All Purpose Slow Release Plant Food Dual Action Granules for Long-Lasting Blooms Slow Release Nutrients Ideal for Flowers, Fruits & Vegetables Feeds for 6 Months (1.1Kg Jar)

Why we love it
  • Long-lasting blooms enhance gardens.
  • Versatile for all plant types.
  • Easy application for any gardener.
Main Highlights
  • 🌱 Long-Lasting Blooms: Promotes vibrant, long-lasting flowers by supporting healthy root systems and foliage growth.
  • 🌱 Ideal for All Plants: Suitable for a wide range of plants including flowers, fruits, vegetables, trees, and shrubs, ensuring versatility in your garden.
  • 🌱 Perfect for Baskets & Containers: Specially designed for pots, tubs, hanging baskets, and garden beds, making it a great choice for all types of gardening.
  • 🌱 Easy to Use: Can be premixed with compost, added to planting holes, or used as a top dressing, offering a simple solution for feeding plants.
  • 🌱 Boosts Root & Flower Growth: The fast-acting nutrients provide an instant boost to roots and flowers, helping plants grow stronger and healthier from the start.
Show More
5
Gro-Sure 6 Month Slow Release Plant Food 1.1kg + 50% Extra Free
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Gro-Sure 6 Month Slow Release Plant Food 1.1kg + 50% Extra Free

Gro-Sure
Why we love it
  • Longer blooms for garden beauty.
  • Dual action for healthy plants.
  • Quick boost for vibrant growth.
Main Highlights
  • Longer lasting blooms
  • Dual action granules keep plants thriving for longer
  • Instant boost for flowers and root growth
  • 6 months feed
Show More
9.4
Superb
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9.4
Superb
Gro-Sure

Gro-Sure 6 Month Slow Release Plant Food 1.1kg + 50% Extra Free

Why we love it
  • Longer blooms for garden beauty.
  • Dual action for healthy plants.
  • Quick boost for vibrant growth.
Main Highlights
  • Longer lasting blooms
  • Dual action granules keep plants thriving for longer
  • Instant boost for flowers and root growth
  • 6 months feed
Show More
6
Miracle-Gro Premium All Purpose Continuous Release Plant Food, 2 kg, White
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Miracle-Gro Premium All Purpose Continuous Release Plant Food, 2 kg, White

Miracle-Gro
Why we love it
  • Controls nutrient release optimally.
  • One-season feeding convenience.
  • Promotes strong, healthy plants.
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: 121069
Show More
9.4
Superb
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9.4
Superb
Miracle-Gro

Miracle-Gro Premium All Purpose Continuous Release Plant Food, 2 kg, White

Why we love it
  • Controls nutrient release optimally.
  • One-season feeding convenience.
  • Promotes strong, healthy plants.
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: 121069
Show More
7
TOPLINE Universal Growmore Fertiliser Granules - 8kg Multipurpose Plant Food for All Garden Plants. Outdoor Plants Feed Fertilizer with Topline Card.
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TOPLINE Universal Growmore Fertiliser Granules - 8kg Multipurpose Plant Food for All Garden Plants. Outdoor Plants Feed Fertilizer with Topline Card.

WOOTONG
9.3
Superb
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9.3
Superb
WOOTONG

TOPLINE Universal Growmore Fertiliser Granules - 8kg Multipurpose Plant Food for All Garden Plants. Outdoor Plants Feed Fertilizer with Topline Card.

8
Garden Plant Feed Fertiliser Bundle - 5kg Organic Chicken Manure Pellets & 2kg Gro-Sure All Purpose 6-Month Slow Release Plant Food Granules for Garden Plants Vegetables with Topline Card.
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Garden Plant Feed Fertiliser Bundle - 5kg Organic Chicken Manure Pellets & 2kg Gro-Sure All Purpose 6-Month Slow Release Plant Food Granules for Garden Plants Vegetables with Topline Card.

Topline
Why we love it
  • Organic and chemical-free option.
  • Promotes healthy plant growth.
  • Convenient slow-release nutrients included.
Main Highlights
  • Garden Plant Food Bulk Buy: 5kg Organic Chicken Manure Pellets Bucket & 2kk Gro-Sure All Purpose 6-months Plant Food with unique Topline Thank You Card. Early spring or late fall, when your garden is not actively growing and being worked, are the best times to apply aged chicken manure and composts. This gives the application some time to break down and work in before it needs to go to work for your new plantings.
  • Organic Chicken Manure Pellets are ideal for improving top soil and planting, as well as feeding of established garden plants. Chicken Manure is an effective non-chemical plants fertiliser and is a useful source of nitrogen.
  • Gro-Sure Slow Release Plant Food granules is a blend of slow release and fast acting nutrients to keep plants healthy, and thriving for longer. Is a great food for flowers, fruits, vegetables, roses, shrubs and trees in containers.
  • Why use poultry manure? Poultry manure products are one of the most commonly available non-chemical fertilisers on the market. Poultry manure is a useful source of nitrogen, the main nutrient that plants need for green leafy growth.
  • The fast acting nutrients boost flowers and root growth, whilst the slow release nutrients feed the plant for 6 months and promote a healthy foliage and long lasting blooms. Suitable for all plants and great for baskets and containers.
Show More
9.1
Superb
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9.1
Superb
Topline

Garden Plant Feed Fertiliser Bundle - 5kg Organic Chicken Manure Pellets & 2kg Gro-Sure All Purpose 6-Month Slow Release Plant Food Granules for Garden Plants Vegetables with Topline Card.

Why we love it
  • Organic and chemical-free option.
  • Promotes healthy plant growth.
  • Convenient slow-release nutrients included.
Main Highlights
  • Garden Plant Food Bulk Buy: 5kg Organic Chicken Manure Pellets Bucket & 2kk Gro-Sure All Purpose 6-months Plant Food with unique Topline Thank You Card. Early spring or late fall, when your garden is not actively growing and being worked, are the best times to apply aged chicken manure and composts. This gives the application some time to break down and work in before it needs to go to work for your new plantings.
  • Organic Chicken Manure Pellets are ideal for improving top soil and planting, as well as feeding of established garden plants. Chicken Manure is an effective non-chemical plants fertiliser and is a useful source of nitrogen.
  • Gro-Sure Slow Release Plant Food granules is a blend of slow release and fast acting nutrients to keep plants healthy, and thriving for longer. Is a great food for flowers, fruits, vegetables, roses, shrubs and trees in containers.
  • Why use poultry manure? Poultry manure products are one of the most commonly available non-chemical fertilisers on the market. Poultry manure is a useful source of nitrogen, the main nutrient that plants need for green leafy growth.
  • The fast acting nutrients boost flowers and root growth, whilst the slow release nutrients feed the plant for 6 months and promote a healthy foliage and long lasting blooms. Suitable for all plants and great for baskets and containers.
Show More
9
Outdoor Plants Food Fertiliser Bundle - Water Saving Gel 250g & Gro-Sure All Purpose 6-month Plant Food Granules 1.1kg with Topline Card for Slow Release Garden Compost Moisture Feeding Control.
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Outdoor Plants Food Fertiliser Bundle - Water Saving Gel 250g & Gro-Sure All Purpose 6-month Plant Food Granules 1.1kg with Topline Card for Slow Release Garden Compost Moisture Feeding Control.

Topline
Why we love it
  • Keeps plants healthy longer.
  • Saves water effortlessly.
  • Perfect for all plants.
Main Highlights
  • Indoor or outdoor garden plants feed bulk buy contains: 1 x Water Saving Gel Moisture Control 250g & 1 x Gro-Sure All Purpose 6-month Slow Release Plant Food Granules with unique Topline Thank You Card. Garden fertilisers for use all around the garden, providing a slow release of food to keep plants healthy and thriving for longer.
  • Gro-Sure Slow Release Plant Food fertiliser granules is a blend of slow release and fast acting nutrients to keep plants healthy, and thriving for longer. Is a great food for flowers, fruits, vegetables, roses, shrubs and trees in containers.
  • Water Saving Gel is a slow release moisture control for pots, containers and hanging baskets. Great for summer use, when temperatures are hot and households go on holiday. Water retention gels are a great way to do your bit for the environment and at the same time reduce the frequency in which you have to water your garden plants. These 'hydrogels' are made from chains of polymers and are able to absorb and retain large amounts of water despite their small their size.
  • The plant pellets can be premixed with compost, top soil before planting, added to the planting hole area or used as a top dressing. Water in the granules to activate.
  • Retaining Gel is an advanced water holding system that has the capacity to hold 400 times its own weight in water. Water is absorbed and released as the plant needs it. Reduces water stress in plants and helps to retain flowers and fruit during hot weather and rapid plant growth. One application lasts all season long.
Show More
8.9
Excellent
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8.9
Excellent
Topline

Outdoor Plants Food Fertiliser Bundle - Water Saving Gel 250g & Gro-Sure All Purpose 6-month Plant Food Granules 1.1kg with Topline Card for Slow Release Garden Compost Moisture Feeding Control.

Why we love it
  • Keeps plants healthy longer.
  • Saves water effortlessly.
  • Perfect for all plants.
Main Highlights
  • Indoor or outdoor garden plants feed bulk buy contains: 1 x Water Saving Gel Moisture Control 250g & 1 x Gro-Sure All Purpose 6-month Slow Release Plant Food Granules with unique Topline Thank You Card. Garden fertilisers for use all around the garden, providing a slow release of food to keep plants healthy and thriving for longer.
  • Gro-Sure Slow Release Plant Food fertiliser granules is a blend of slow release and fast acting nutrients to keep plants healthy, and thriving for longer. Is a great food for flowers, fruits, vegetables, roses, shrubs and trees in containers.
  • Water Saving Gel is a slow release moisture control for pots, containers and hanging baskets. Great for summer use, when temperatures are hot and households go on holiday. Water retention gels are a great way to do your bit for the environment and at the same time reduce the frequency in which you have to water your garden plants. These 'hydrogels' are made from chains of polymers and are able to absorb and retain large amounts of water despite their small their size.
  • The plant pellets can be premixed with compost, top soil before planting, added to the planting hole area or used as a top dressing. Water in the granules to activate.
  • Retaining Gel is an advanced water holding system that has the capacity to hold 400 times its own weight in water. Water is absorbed and released as the plant needs it. Reduces water stress in plants and helps to retain flowers and fruit during hot weather and rapid plant growth. One application lasts all season long.
Show More
10
Value Pack of 2 - Miracle-Gro Slow Release All Purpose Plant Food 1 kg Shaker Jar
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Value Pack of 2 - Miracle-Gro Slow Release All Purpose Plant Food 1 kg Shaker Jar

8.8
Excellent
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8.8
Excellent

Value Pack of 2 - Miracle-Gro Slow Release All Purpose Plant Food 1 kg Shaker Jar

We scanned 1549 products

We reviewed these offers relevant to the Plant Food Outdoor Granules Slow Release 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 Topline, TOP SAVER, Westland, Gro-Sure, Miracle-Gro, WOOTONG, , 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 Granules Slow Release in the market, we considered we took a deep dive into 7746 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: