Overview of Liquid Fertiliser Applications

Liquid fertilisers 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.

Varieties of Liquid Fertilisers

Organic liquid fertilisers come from sources like compost and manure-based materials.
They contain key elements and microorganisms that support soil condition and moisture retention, making them well-suited for eco-conscious gardeners.

Synthetic fertilisers, by contrast, deliver concentrated nutrients and often encourage faster growth.
They are useful when immediate results are needed, but must be used with care to avoid over-fertilisation.

Advantages of Using Liquid Fertilisers

One key benefit is the efficiency at which nutrients are absorbed by plants.
Since the elements are already in liquid form, plants can utilise them quickly, resulting in faster visible growth.

Unlike granular alternatives, liquid fertilisers enable for more precise application, ensuring that nutrients are spread consistently, minimising waste and targeting specific plant areas.

They are also appropriate for mature plants or areas with restricted nutrient uptake, where soil disruption is undesirable.

Guidelines for Applying Liquid Fertiliser

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

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


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


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

Be sure to follow the manufacturer’s recommended dilution rates.
Excessive use can lead to root damage, nutrient runoff, and stress to plants.

Factors to Consider When Choosing a Liquid Fertiliser

The balance of N-P-K (Nitrogen, Phosphorus, Potassium) are crucial for matching fertiliser to plant needs.
For instance, high nitrogen supports leafy growth, while phosphorus is essential for blooms and fruiting.

Soil pH and type should also more info influence your selection.
Sandy soils may need more regular feeding due to nutrient loss, while low pH conditions may benefit from neutral or alkaline formulations.

If you’re interested in sustainability, an organic product is often the most appropriate option, especially for long-term soil health.

Frequently Asked Questions

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 uniform growth and dense green coverage.

When is the best time of day to apply it?

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

Can it be used on houseplants?

Absolutely. Dilute the solution 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 healthy, vibrant plants without overcomplicating their care routine.
Whether you're maintaining a garden, lawn or indoor space, liquid feeding provides consistent results when used correctly.

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