Introduction to Liquid Fertiliser Applications

Liquid fertilisers are widely used in horticulture and grounds care, thanks to their straightforward application and rapid nutrient absorption.
This article covers the types of liquid fertilisers, their usage, and reasons why they’re beneficial for maintaining thriving plants and lawns.

Varieties of Liquid Fertilisers

Organic liquid fertilisers are produced from sources like compost and animal manure.
They offer key elements and beneficial bacteria that support soil structure and moisture retention, making them well-suited for environmentally aware gardeners.

Synthetic fertilisers, by contrast, offer concentrated nutrients and can lead to faster growth.
They are effective when quick results are needed, but must be used with care to prevent over-fertilisation.

Advantages of Using Liquid Fertilisers

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

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

They are also appropriate for mature plants or areas with poor nutrient availability, where disturbing the soil is undesirable.

Best Practices for Applying Liquid Fertiliser

The optimal 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 stress the plants.

• Foliar application: Ideal 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.

Always adhere to the manufacturer’s specified dilution rates.
Over-application here can lead to root damage, pollution, and stress to plants.

Things to Keep in Mind 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 flowering and fruiting.

Soil acidity and texture should also influence your selection.
Sandy soils may need more frequent feeding due to leaching, while acidic soils 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?

Typically 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 healthy green coverage.

When is the best time of day to apply it?

Early morning or late afternoon to avoid evaporation and reduce scorching.

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.

Wrapping Up

Liquid fertilisers offer a practical solution for those seeking healthy, vibrant plants without complicating 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.