Overview of Liquid Fertiliser Applications

Liquid nutrients have become a popular choice in horticulture and grounds maintenance, due to their straightforward application and fast nutrient absorption.
This article examines the types of liquid fertilisers, how they are applied, and reasons why they’re useful for maintaining healthy plants and lawns.

Types of Liquid Fertilisers

Organic liquid fertilisers are produced from sources like decomposed plant material and animal manure.
They offer vital nutrients and microorganisms that enhance soil structure and water-holding capacity, making them ideal for eco-conscious gardeners.

Chemical-based liquid feeds, on the other hand, offer concentrated nutrients and often encourage faster growth.
They are effective when immediate results are needed, but must be used with care to prevent over-fertilisation.

Advantages of Using Liquid Fertilisers

One key advantage is the efficiency at which nutrients are absorbed by plants.
Since the nutrients are already in liquid form, plants can utilise them without delay, resulting in faster visible growth.

Unlike granular alternatives, liquid fertilisers enable for more precise application, ensuring that nutrients are distributed evenly, reducing excess and targeting specific plant areas.

They are also suited to mature plants or soils suffering from poor nutrient availability, where disturbing the soil is undesirable.

Guidelines for Applying Liquid Fertiliser

The most effective time to apply liquid fertiliser is during the plant’s active phase, typically in spring or early summer.
Refrain from applying during extreme heat or dormancy, as it can damage the plants.

• Spraying: Ideal for fast absorption via leaves and for treating specific deficiencies.


• Base application: Targeted application to the root zone for effective nutrient uptake.


• Soil drenching: Encourages deep root development and soil penetration.

Always adhere to the manufacturer’s specified dilution rates.
Over-application can lead to plant burn, pollution, liquid fertiliser applications and harm to plants.

Things to Keep in Mind When Choosing a Liquid Fertiliser

Nutrient ratios are important for matching fertiliser to plant needs.
For instance, high nitrogen supports leafy growth, while phosphorus is beneficial for blooms and fruiting.

Soil acidity and texture should also guide your selection.
Sandy soils may need more regular feeding due to leaching, while acidic soils may benefit from neutral or alkaline formulations.

If you’re focused on sustainability, an organic product is often the most appropriate option, especially for eco-friendly soil health.

Common Queries

How often should liquid fertiliser be applied?

Usually every 2–4 weeks, depending on plant type and growth stage. Check the plant's specific needs.

Is it suitable for lawns?

Yes, it promotes even growth and healthy green coverage.

When is the best time of day to apply it?

Early morning or late afternoon to prevent evaporation and reduce plant stress.

Can it be used on houseplants?

Absolutely. Use a diluted mix to avoid overfeeding indoor plants.

Is it safe for pets?

Generally safe once dry. Keep pets away until treated areas have dried fully.

Final Thoughts

Liquid fertilisers offer a practical solution for those seeking vigorous, well-fed plants without overcomplicating their care routine.
Whether you're maintaining a garden, lawn or indoor space, liquid feeding delivers consistent results when used correctly.

To find out further about choosing the right products for your needs, explore the ALS Contracts website.