Gardening success often depends on one simple factor: providing plants with the nutrients they need to grow properly. Even the healthiest soil can eventually become depleted as plants absorb nutrients season after season. This is where a balanced fertiliser becomes essential.
One of the most widely used garden feeds is Growmore fertiliser, a classic balanced fertiliser designed to support strong plant growth, healthy roots, and improved flowering and yields. A popular example is Magic Garden Growmore General Purpose Fertiliser 7-7-7, a horticultural-grade granular fertiliser suitable for almost every type of plant.
Whether you are maintaining a flower border, growing vegetables, feeding a lawn, or planting patio containers, Growmore fertiliser offers a reliable and simple way to provide complete nutrition throughout the growing season.
In this complete guide we will cover:
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What Growmore fertiliser is
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What the 7-7-7 NPK ratio means
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How it benefits different types of plants
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Exact application rates in grams per square metre
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How to use it for vegetables, flowers, lawns, and containers
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Seasonal feeding schedules
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Common fertilising mistakes to avoid
If you are looking for where to buy Growmore fertiliser UK online, you can find horticultural-grade products from a trusted UK supplier at:
https://shop.hdchemicals.co.uk/
What Is Growmore Fertiliser?
Growmore fertiliser is a general purpose garden fertiliser designed to provide plants with three essential nutrients:
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Nitrogen (N)
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Phosphorus (P)
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Potassium (K)
These nutrients are collectively known as NPK, and they are the foundation of healthy plant development.
Magic Garden Growmore uses a balanced 7-7-7 NPK formula, meaning each nutrient is present in equal proportions. This balanced ratio makes it suitable for a wide range of plants including:
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vegetables
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flowers
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shrubs
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lawns
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salad crops
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patio plants
Because it delivers nutrients evenly, Growmore is considered one of the most versatile fertilisers available for home gardeners.
If you're searching for where to buy Growmore fertiliser UK online, the product is available from HD Chemicals as a horticultural-grade granular fertiliser supplied in convenient grip seal bags.
Understanding the NPK 7-7-7 Ratio
Fertiliser labels always display an NPK number, which tells you the proportion of nutrients contained in the fertiliser.
For Growmore fertiliser, the ratio is:
7-7-7
This means the fertiliser contains:
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7% Nitrogen
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7% Phosphorus
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7% Potassium
Each nutrient plays a specific role in plant development.
Nitrogen (N) – Leaf and Stem Growth
Nitrogen is responsible for producing lush green foliage and strong stems. It helps plants perform photosynthesis efficiently and supports rapid growth during the early stages of development.
Plants that benefit from nitrogen include:
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lettuce
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spinach
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cabbage
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lawns
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leafy ornamental plants
Without sufficient nitrogen, plants often develop yellow leaves and slow growth.
Phosphorus (P) – Root Development
Phosphorus supports the development of healthy root systems. Strong roots allow plants to absorb water and nutrients more effectively.
It is particularly important for:
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young plants
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seedlings
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transplanting
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root vegetables
A strong root system helps plants establish quickly after planting.
Potassium (K) – Flowering and Disease Resistance
Potassium strengthens plant cells and helps regulate water movement within the plant.
Benefits include:
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stronger stems
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better flower production
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improved fruit yields
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increased resistance to plant diseases
Potassium is especially valuable for flowering plants and fruiting vegetables such as tomatoes.
Why Balanced Fertiliser Works for Most Gardens
Many specialised fertilisers focus heavily on one nutrient. While this can be useful in certain situations, most home gardens benefit from balanced nutrition.
Growmore fertiliser works well because it supports all stages of plant development:
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Root establishment
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Leaf growth
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Flowering and fruiting
This balanced approach makes it ideal for gardeners who want one fertiliser that can be used throughout the entire garden.
Common uses include:
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vegetable plots
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ornamental borders
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lawns
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container plants
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salad crops
For gardeners searching where to buy Growmore fertiliser UK online, HD Chemicals supplies horticultural grade Growmore designed for reliable garden performance.
Benefits of Magic Garden Growmore Fertiliser
Magic Garden Growmore offers several advantages that make it a practical fertiliser for both beginners and experienced gardeners.
Balanced Nutrition
The 7-7-7 NPK formula ensures plants receive a consistent supply of essential nutrients.
Versatile Application
It can be used for:
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vegetables
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flowers
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lawns
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containers
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allotments
Granular Form
Granular fertiliser is easy to apply and distributes nutrients evenly throughout the soil.
Fast Acting
Once watered into the soil, nutrients begin becoming available to plants quickly.
Easy Storage
Supplied in secure grip seal bags, the fertiliser can be stored safely between uses.
If you're looking where to buy Growmore fertiliser UK online, HD Chemicals offers convenient pack sizes suitable for home gardens.
How to Use Growmore Fertiliser in the Garden
Correct application is important for achieving the best results.
Growmore fertiliser should always be spread evenly across the soil surface and lightly mixed into the top layer of soil.
After application, watering helps dissolve the granules and allows nutrients to move into the root zone.
Application Rate for General Garden Feeding
For general garden use, the recommended application rate is:
50 grams per square metre (g/m²)
Step-by-Step Guide
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Measure the planting area
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Sprinkle 50 g of fertiliser per m² evenly across the soil
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Lightly fork or hoe the granules into the soil surface
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Water thoroughly
This feeding method can be repeated once per month during the growing season.
Example:
If you have a flower bed measuring 4 m², you would apply:
200 g of Growmore fertiliser
Using Growmore Fertiliser for Vegetable Gardens
Vegetables require consistent nutrient supply to produce healthy leaves, roots, and fruit.
Growmore fertiliser can be used both before planting and during the growing season.
Soil Preparation Before Planting
Before sowing or transplanting vegetables:
Apply 140 g per square metre
Example
For a 10 m² vegetable plot, apply:
1.4 kg of fertiliser
Steps
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Spread fertiliser evenly across the soil
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Fork into the top 10–15 cm of soil
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Water lightly if soil is dry
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Wait 7–10 days before planting
This preparation ensures nutrients are available as plants establish.
Feeding Salad Crops
Salad crops require lighter feeding than many other vegetables.
Recommended rate:
70 g per m²
Example
For a 2 m² salad bed:
140 g of Growmore fertiliser
Steps:
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Spread fertiliser evenly
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Mix lightly into the soil
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Water after application
This provides sufficient nutrients without overfeeding delicate plants.
Using Growmore in Patio Containers and Pots
Container plants require regular feeding because nutrients are quickly used up in limited soil volumes.
Growmore fertiliser can be incorporated when planting containers.
Application Method
Mix:
35 g of fertiliser
with:
2–3 handfuls of compost
Planting Steps
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Add fertiliser to compost
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Place mixture in the bottom of the container
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Position the plant
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Fill remaining space with compost
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Water thoroughly
After approximately two months, scatter a small handful (around 25 g) around the base of the plant and lightly mix into the compost.
Feeding Flower Beds and Borders
Flowering plants benefit from balanced nutrition throughout the growing season.
Recommended Rate
140 g per m² before planting
Example:
For a 5 m² flower border:
700 g fertiliser
Steps:
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Spread evenly across soil
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Fork into the surface
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Water if necessary
After planting, light feeding can continue once per month using 50 g per m².
Using Growmore Fertiliser for Lawns
Growmore can also be used to maintain healthy lawns.
Application Rate
35–50 g per m²
Example:
For a 20 m² lawn area
You would apply approximately:
700–1000 g fertiliser
Steps:
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Spread fertiliser evenly across grass
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Apply when grass is dry
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Water after application
This encourages thicker, greener grass growth.
Monthly Feeding Schedule
Consistent feeding helps maintain soil fertility and plant growth.
Typical Growing Season Schedule
March – April
Prepare soil with base fertiliser.
May – June
Apply monthly feeding.
July – August
Continue feeding for flowering and fruit production.
September
Light final feeding if plants are still growing.
Avoiding Common Fertiliser Mistakes
While fertilisers are beneficial, incorrect use can cause problems.
Over-Fertilising
Applying too much fertiliser can damage roots and slow plant growth.
Always follow recommended application rates.
Uneven Distribution
Spreading fertiliser unevenly can cause patchy plant growth.
Use consistent spreading methods.
Applying to Dry Soil Without Watering
Water helps dissolve fertiliser granules and move nutrients into the soil.
Feeding Dormant Plants
Plants growing slowly during winter require little or no fertiliser.
Storing Fertiliser Safely
Proper storage ensures fertiliser remains effective.
Storage guidelines:
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Keep in a cool, dry place
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Seal bag after use
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Store away from children and pets
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Avoid moisture exposure
Grip seal bags supplied by HD Chemicals help maintain product quality.
Why Buy Growmore Fertiliser from HD Chemicals?
HD Chemicals supplies horticultural grade garden chemicals and fertilisers across the UK.
Benefits include:
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reliable product quality
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secure packaging
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convenient multipack options
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suitable for home gardeners and allotment growers
If you're searching for where to buy Growmore fertiliser UK online, visit:
https://shop.hdchemicals.co.uk/
Conclusion
Growmore fertiliser remains one of the most trusted general purpose garden fertilisers available. Its balanced 7-7-7 NPK formula provides plants with essential nutrients needed for healthy growth, strong roots, and abundant flowering.
Whether you are feeding vegetables, flower beds, lawns, or containers, Growmore offers a reliable and easy-to-use solution for maintaining healthy soil and productive gardens.
By applying the correct rates and following a consistent feeding schedule, gardeners can support plant growth throughout the entire growing season.
For gardeners looking where to buy Growmore fertiliser UK online, Magic Garden Growmore is available from HD Chemicals in convenient packaging suitable for a wide range of garden sizes.
Visit:
https://shop.hdchemicals.co.uk/
to explore the full range of horticultural chemicals and fertilisers.
Frequently Asked Questions
1. What does 7-7-7 mean on fertiliser?
It refers to the percentage of nitrogen, phosphorus, and potassium contained in the fertiliser. A 7-7-7 fertiliser contains equal amounts of each nutrient.
2. Can Growmore fertiliser be used on vegetables?
Yes. Growmore is widely used in vegetable gardens and allotments to support healthy plant growth and improved yields.
3. How often should Growmore fertiliser be applied?
Most gardens benefit from monthly feeding during the growing season.
4. Is Growmore suitable for containers?
Yes. It can be mixed with compost when planting containers and reapplied later during plant growth.
5. Can Growmore fertiliser be used on lawns?
Yes. It can be spread across lawns to encourage healthy grass growth.
6. Should fertiliser be watered after application?
Yes. Water helps dissolve fertiliser granules and allows nutrients to reach plant roots.
7. Can Growmore fertiliser be used for flowers?
Yes. It supports flowering plants by providing balanced nutrition.
8. How should Growmore fertiliser be stored?
Store fertiliser in a cool, dry place, sealed in its original packaging.
9. Is Growmore suitable for salad crops?
Yes, but at a reduced application rate of around 70 g per m².
10. Where can I buy Growmore fertiliser in the UK?
You can purchase horticultural-grade Growmore from a trusted supplier by visiting: