Introduction to Liquid Fertiliser Applications

Liquid nutrients have become a popular choice in horticulture and grounds maintenance, thanks to their straightforward application and fast nutrient absorption.
This resource covers the varieties of liquid fertilisers, how they are applied, and why they are useful for maintaining thriving plants and lawns.

Varieties of Liquid Fertilisers

Organic liquid fertilisers come from sources like decomposed plant material and animal manure.
They contain key elements and beneficial bacteria that support soil structure and moisture retention, making them well-suited for environmentally aware gardeners.

Synthetic fertilisers, on the other hand, offer concentrated nutrients and often encourage accelerated growth.
They are effective when immediate results are needed, but should be applied with care to prevent over-fertilisation.

Advantages of Using Liquid Fertilisers

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

Compared to granular alternatives, liquid fertilisers allow for more precise application, ensuring that nutrients are distributed evenly, minimising waste and targeting specific plant areas.

They are also appropriate for mature plants or soils suffering from poor nutrient availability, where soil disruption is undesirable.

Guidelines 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 website heat or dormancy, as it can stress 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.


• Deep watering: Promotes deep root development and soil penetration.

Always adhere to the manufacturer’s recommended 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 here for matching fertiliser to plant needs.
For instance, high nitrogen supports leafy growth, while phosphorus is essential for blooms and fruiting.

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

If you’re focused on sustainability, an organic product is often the most appropriate option, especially for long-term 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 even 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 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 are a reliable option for those seeking healthy, vibrant 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 learn more about choosing the right products for your needs, explore the ALS Contracts website.