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 covers the varieties of liquid fertilisers, their usage, and why they are beneficial for maintaining thriving plants and lawns.

Types of Liquid Fertilisers

Organic liquid fertilisers come from sources like compost and manure-based materials.
They contain vital nutrients and beneficial bacteria that support soil condition and moisture retention, making them well-suited for environmentally aware gardeners.

Synthetic fertilisers, by contrast, offer concentrated nutrients and can lead to accelerated growth.
They are effective when quick results are needed, but should be applied 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 nutrients are already in liquid form, plants can utilise them without delay, resulting in faster visible growth.

Compared to granular alternatives, liquid fertilisers enable for more even application, ensuring that nutrients are distributed evenly, minimising waste and feeding specific plant areas.

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

Best Practices for Applying Liquid Fertiliser

The optimal 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 stress the plants.

• Spraying: Suitable 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 root damage, pollution, and harm 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 beneficial for blooms and fruiting.

Soil pH and type should also influence your selection.
Sandy soils may need more frequent website feeding due to leaching, while low pH conditions may require neutral or alkaline formulations.

If you’re interested in 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?

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 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 are a reliable option 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.