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

Natural liquid feeds come from sources like compost and animal manure.
They contain key elements and beneficial bacteria that support soil structure and water-holding capacity, making them well-suited for eco-conscious 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.

Benefits 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, leading to faster visible growth.

Compared to 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 appropriate for mature plants or areas with restricted nutrient uptake, where soil disruption is undesirable.

Best Practices for Applying Liquid Fertiliser

The most effective time to apply liquid fertiliser is during the plant’s active phase, typically in the early growing season.
Refrain from applying during hot spells or dormancy, as it can damage the plants.

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


• Root feeding: Targeted 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 can lead to plant burn, nutrient runoff, and harm to plants.

Factors to Consider When Choosing a Liquid Fertiliser

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

Soil pH and type should also guide your selection.
Sandy soils may need more frequent feeding due to leaching, while low pH conditions 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.

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 even 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.

Wrapping Up

Liquid fertilisers are a reliable option for those seeking healthy, vibrant plants without complicating 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.