When it comes to landscaping projects, topsoil plays a pivotal role in creating a healthy and vibrant outdoor space. Whether you’re planning to start a garden, lay new turf or rejuvenate your existing lawn, understanding the basics of topsoil is essential for success.  

In this post, we’ll answer some common questions people have about topsoil and provide valuable tips on its usage. We’ll also introduce you to our top-quality topsoil product offered here at Inturf, which can make your landscaping endeavours a breeze. You can find more information about the topsoil product here.

What is Topsoil Used For? 

Topsoil is a versatile resource used in various landscaping projects, including: 

Gardens: Topsoil provides a fertile foundation for growing plants, vegetables and flowers. It contains essential nutrients and organic matter necessary for healthy plant growth. We would strongly recommend the use of a pre turf fertiliser or a soil conditioner for planting, such as TerraCottem.  

Commercial Landscaping: Professional landscapers use topsoil to create rich green spaces, ensuring a beautiful and sustainable environment for commercial properties. 

Turfing: Whether you’re establishing a new lawn or renovating an existing one, topsoil is crucial for achieving a smooth and healthy turf. 

Planting: Trees and shrubs thrive when planted in nutrient-rich topsoil, promoting strong root development and overall growth. 

Top Dressing for Lawns: During lawn renovations, topsoil can be used as a top dressing to improve the soil structure and provide a nutrient boost to the grass. 

Beyond its practical applications, topsoil can transform the aesthetic appeal of your garden. The addition of topsoil improves soil structure, promotes water retention and enhances the overall beauty of your outdoor space. Whether you’re a seasoned gardener or a novice, our topsoil is designed to elevate your gardening experience.

Consider using topsoil for decorative purposes, such as creating raised beds, defining garden borders, or even sculpting small mounds for visual interest. The versatility of our topsoil allows you to unleash your creativity and design a garden that truly reflects your style.

How Much Topsoil Do I Need?  

The amount of topsoil you need depends on the area you plan to cover and the desired depth. To calculate the quantity required: 

1. Determine the area’s length and width in meters (e.g., 10m x 10m = 100 square meters). 

2. Decide on the desired depth of topsoil (e.g. 100mm). 

   Calculation: Area (m²) x Depth (m) = Total Cubic Meters 

   For example: 100m² x 100mm = 10 cubic meters. 

Keep in mind that the depth required may vary. For instance, a returfing job might need less than 50% of the calculated depth, depending on your specific project. But don’t worry, if you are unsure measure the area you want to cover and give us a call to talk through your garden project and requirements. Our team are more than happy to help you understand the quantity required and point you in the right direction.  

How Much Topsoil for Turf & How Deep Should It Be?  

When embarking on this project, understanding the right amount of topsoil and its optimal depth is crucial for achieving a lush and healthy lawn. The recommended depth for topsoil when laying turf is generally around 100mm. However, it’s essential to consider various factors that may influence this guideline based on the specific requirements of your project.

Factors Influencing Topsoil Depth:
Project Type: The type of turfing project you undertake can impact the required depth of topsoil. For instance, if you’re establishing a new lawn, the standard recommendation of 100mm provides an excellent foundation for healthy grass growth. In contrast, a returfing project might necessitate less topsoil, depending on the condition of the existing soil.

Soil Quality: Assessing the quality of your existing soil is crucial. If your soil is already nutrient-rich and well-structured, you may not need the full 100mm depth. Understanding the composition of your soil allows for a more precise calculation of the topsoil depth required.

Drainage Needs: Consider the drainage requirements of your lawn. In areas prone to waterlogging, a thinner layer of topsoil may be preferable to ensure effective water drainage. Conversely, if your soil has drainage issues, a thicker layer could enhance water retention.

Professional Consultation: When in doubt, consulting with a landscaping professional can provide tailored advice based on your specific situation. Professionals can assess soil quality, drainage conditions, and project goals to determine the optimal topsoil depth for your turfing project.

Optimising Topsoil Depth for Returfing:

In returfing scenarios, where you’re revitalising an existing lawn, the topsoil depth may vary. Assess the health of the current grass, soil compactness and any underlying issues. Generally, a thinner layer of topsoil (perhaps 50-75mm) might suffice, promoting new growth without overwhelming existing grass.

Landscaping professionals bring expertise to the table, ensuring that the topsoil depth aligns with the unique requirements of your project. They consider factors such as soil composition, regional climate, and specific turf varieties to provide a customised recommendation that fosters optimal grass development.

How to Lay Turf on Topsoil? 

Laying turf on topsoil is a straightforward process that ensures a healthy and thriving lawn. It can help to improve grass growth by enriching soil quality with nutrients and organic matter. It creates a level, weed-suppressing surface, encourages strong root development and enhances overall lawn appearance. Topsoil is particularly useful in areas with poor soil quality, promoting uniform growth.  

1. Remove existing turf and weeds. 

2. Rotovate the soil underneath to improve its structure. 

3. Remove any debris or rocks from the area. 

4. Spread a layer of topsoil evenly over the prepared soil. 

5. Optionally step, apply fertiliser, such as TerraCottem, depending on the soil type. 

6. Lay the turf on top of the prepared soil and water it thoroughly. 

How do you Apply Topsoil Over Existing Turf? 

If you’re renovating an existing lawn, applying topsoil can breathe new life into it. The topsoil enriches the existing soil with essential nutrients and organic matter, rejuvenating the lawn and promoting healthier grass growth. This process can also level uneven surfaces, improving the lawn’s aesthetics and creating a smoother appearance.  

1. Apply a thin layer of topsoil (around 5mm deep) evenly over the existing turf. 

2. Use a rake to level the topsoil and remove any unwanted debris. 

3. Gently brush the topsoil into the existing grass. 

Topsoil Tips for your Garden 

Topsoil is a fundamental element in landscaping, serving various purposes from gardening to turfing and beyond. Understanding how to calculate the amount you need and how to apply it correctly can make your landscaping projects more successful and enjoyable.  

At Inturf we offer a high-quality topsoil product that’s perfect for all your landscaping needs. Learn more about our topsoil here and get ready to transform your outdoor space. 

Whether you’re a seasoned landscaper or a homeowner embarking on your first gardening project, Inturf is here to support you. Contact our knowledgeable team for expert advice on choosing the right topsoil for your specific needs. With Inturf, your landscaping journey is set for success.