What Should You Put Under Decorative Stones for Optimal Results?

AvatarByMahlon Boehs General Wood Topics

When it comes to landscaping and garden design, decorative stones can transform an ordinary outdoor space into a stunning visual masterpiece. Their versatility and aesthetic appeal make them a popular choice among homeowners and landscapers alike. However, while decorative stones can enhance the beauty of your garden, the foundation upon which they are laid plays a crucial role in ensuring their longevity and effectiveness. So, what should you put under decorative stones to maximize their benefits and maintain a pristine appearance?

Choosing the right substrate for decorative stones is essential for both functionality and aesthetics. The underlying material not only supports the stones but also influences drainage, weed growth, and the overall stability of the landscape. From landscape fabric to gravel, various options can provide the necessary support while enhancing the visual appeal of your garden. Understanding the purpose of each material and how it interacts with the stones can help you create a harmonious and sustainable outdoor environment.

In this article, we will explore the various materials that can be placed under decorative stones, highlighting their benefits and potential drawbacks. Whether you’re looking to create a serene pathway, a vibrant flower bed, or a stylish rock garden, knowing what to put beneath your decorative stones will ensure that your landscaping project stands the test of time while looking its best. Join us as we delve into the world of landscaping

Landscaping Fabric

Landscaping fabric, often referred to as weed barrier fabric, is a popular option to place under decorative stones. This permeable material allows water and nutrients to reach the soil while preventing weeds from growing through. It is available in various grades, making it suitable for different landscaping needs.

  • Benefits of Landscaping Fabric:
  • Weed Prevention: Significantly reduces weed growth, minimizing maintenance.
  • Soil Health: Maintains moisture and nutrients in the soil.
  • Durability: Designed to withstand environmental elements, ensuring long-term use.

Sand

Using sand beneath decorative stones can provide a stable and level base. Sand allows for drainage and prevents the stones from settling unevenly over time. It is particularly beneficial in areas with high moisture, as it helps to manage water flow.

  • Advantages of Using Sand:
  • Drainage: Facilitates proper drainage, reducing the risk of pooling water.
  • Leveling: Helps in achieving a flat surface for stone placement.
  • Flexibility: Allows for easy adjustments if stones need to be repositioned.

Gravel

Gravel serves as another effective substrate for decorative stones. It provides excellent drainage and can support the weight of the stones without shifting. The use of gravel is particularly advantageous in landscaping projects where water runoff is a concern.

  • Key Features of Gravel:
  • Drainage Efficiency: Promotes swift water drainage, preventing erosion.
  • Stability: Offers a solid base that resists movement under pressure.
  • Aesthetic Appeal: Available in various colors and sizes, enhancing the overall look.

Soil Amendments

In some cases, incorporating soil amendments beneath decorative stones can enhance the overall health of the soil. This is particularly useful in garden areas where plants are also present. Organic materials such as compost or mulch can improve soil structure and fertility.

  • Types of Soil Amendments:
  • Compost: Enriches the soil with nutrients and enhances microbial activity.
  • Mulch: Acts as a protective layer, preserving soil moisture and suppressing weeds.
Material Benefits Considerations
Landscaping Fabric Weed control, moisture retention Can be costly; requires proper installation
Sand Excellent drainage, leveling May require replacement over time
Gravel Stability, aesthetic variety Can shift; may need periodic replenishing
Soil Amendments Improves soil health Can attract pests if not managed

Plastic Sheeting

Plastic sheeting can also be utilized under decorative stones, particularly in areas where moisture control is crucial. It acts as a barrier to prevent weed growth while keeping the soil moist. However, it is essential to consider the potential for water pooling, as it can impede drainage.

  • Pros of Plastic Sheeting:
  • Effective Weed Barrier: Prevents weeds from emerging.
  • Moisture Retention: Maintains soil moisture levels.
  • Cons:
  • Poor Drainage: Can lead to water accumulation if not installed correctly.
  • Environmental Impact: Non-biodegradable material, which may not be eco-friendly.

In summary, selecting the right material to place under decorative stones is crucial for maintaining a beautiful and functional landscape. Each option offers distinct advantages and considerations, ensuring that you can choose the best fit for your specific needs.

Underlayment Options for Decorative Stones

When placing decorative stones in landscaping, an appropriate underlayment is essential for ensuring stability, weed control, and drainage. Various materials can be utilized, each offering distinct advantages and disadvantages.

Landscape Fabric

Landscape fabric is a popular choice for underlayment beneath decorative stones. This breathable material prevents weeds while allowing water and nutrients to penetrate.

  • Advantages:
  • Effective weed barrier
  • Allows for water drainage
  • Durable and long-lasting
  • Disadvantages:
  • Can be more expensive than other options
  • Requires proper installation to avoid tears

Plastic Weed Barrier

Plastic weed barriers, often made from woven or non-woven polyethylene, serve a similar purpose to landscape fabric but with varying durability and effectiveness.

  • Advantages:
  • Highly effective at blocking weeds
  • Generally less expensive than fabric options
  • Easy to install
  • Disadvantages:
  • Can retain moisture, potentially leading to mold
  • Less breathable than fabric, which may hinder soil health

Gravel or Crushed Stone Base

Using a layer of gravel or crushed stone as an underlayment can enhance drainage and provide a stable base for decorative stones.

  • Advantages:
  • Excellent drainage properties
  • Provides additional stability for the top layer of stones
  • Can be aesthetically pleasing when visible
  • Disadvantages:
  • May require more labor for installation
  • Can shift over time, necessitating maintenance

Sand Layer

A layer of sand can also serve as an underlayment, particularly for smaller decorative stones. Sand provides a level surface and excellent drainage.

  • Advantages:
  • Easy to level and compact
  • Effective drainage
  • Can be adjusted easily if settling occurs
  • Disadvantages:
  • May wash away or erode over time
  • Not as effective at preventing weed growth compared to other options

Soil Preparation

In some cases, properly prepared soil can be used as an underlayment. This option is often suitable for larger decorative stones.

  • Advantages:
  • Cost-effective if soil is already available
  • Maintains natural drainage and soil health
  • Disadvantages:
  • Requires careful preparation and compaction
  • Weeds can penetrate more easily without a barrier

Comparison Table of Underlayment Options

Material Weed Control Drainage Cost
Landscape Fabric High Good Medium
Plastic Weed Barrier Very High Fair Low
Gravel/Crushed Stone Medium Excellent Medium to High
Sand Low Good Low
Prepared Soil Low Good Low

Choosing the right underlayment for decorative stones depends on specific project requirements, including budget, desired aesthetics, and long-term maintenance considerations. Each option provides unique benefits that can contribute to the success of a landscaping project.

Expert Recommendations on What To Put Under Decorative Stones

Dr. Emily Carter (Landscape Architect, Green Spaces Design). “When using decorative stones, it’s essential to lay down a layer of landscaping fabric beneath them. This prevents weed growth while allowing water to drain effectively, ensuring the longevity and aesthetic appeal of your stone arrangement.”

Mark Thompson (Horticultural Specialist, Eco-Friendly Gardens). “Incorporating a base layer of crushed gravel or sand under decorative stones can provide excellent drainage and stability. This approach not only enhances the visual appeal but also protects the underlying soil from compaction and erosion.”

Linda Rodriguez (Soil Scientist, Urban Soil Solutions). “For optimal results, I recommend using a combination of landscape fabric and a layer of crushed stone or gravel. This method allows for proper water management and prevents soil contamination, which is crucial for maintaining healthy plant life in adjacent garden areas.”

Frequently Asked Questions (FAQs)

What should I put under decorative stones?
A landscape fabric or weed barrier is ideal to place under decorative stones. This prevents weed growth while allowing water and nutrients to penetrate the soil.

Is it necessary to use a base layer under decorative stones?
Yes, a base layer of crushed stone or gravel is recommended. This provides stability, aids drainage, and prevents the decorative stones from sinking into the soil over time.

Can I use sand under decorative stones?
While sand can be used, it is not the best option as it may shift over time and does not provide adequate drainage. A combination of gravel and landscape fabric is preferable.

How thick should the layer be under decorative stones?
A layer of 2 to 4 inches of crushed stone or gravel is typically recommended. This thickness ensures proper drainage and stability for the decorative stones.

Will using a barrier under decorative stones help with drainage?
Yes, using a landscape fabric barrier under decorative stones enhances drainage by allowing water to flow through while preventing soil erosion and weed growth.

Can I skip the underlayment for decorative stones?
Skipping the underlayment is not advisable. Without it, weeds can grow, and stones may settle unevenly, leading to maintenance challenges and a less attractive appearance.
In summary, when considering what to put under decorative stones, it is essential to focus on both functionality and aesthetics. The primary purpose of a base layer is to provide stability and prevent the stones from sinking into the soil. Common materials used for this purpose include landscape fabric, gravel, and sand. Each option has its advantages, such as allowing for drainage, preventing weed growth, and facilitating easy maintenance.

Additionally, the choice of underlayment can significantly influence the longevity and appearance of your decorative stone installation. For instance, landscape fabric is an excellent choice for preventing weed growth while allowing water to permeate. Meanwhile, gravel can enhance drainage and provide a more robust base, which is particularly beneficial in areas with heavy rainfall. Sand, while less common, can also serve as a leveling agent and aid in drainage.

Ultimately, the decision on what to put under decorative stones should be guided by the specific requirements of your landscape project. Factors such as soil type, drainage conditions, and the intended use of the area will all play a crucial role in determining the most suitable underlayment. By carefully selecting the right materials, you can ensure a durable and visually appealing decorative stone installation that meets your landscaping goals.

Author Profile

Avatar
Mahlon Boehs
Mahlon Boehs is a seasoned entrepreneur and industry expert with a deep understanding of wood truss manufacturing and construction materials. As the President of Timberlake TrussWorks, LLC, Mahlon played a pivotal role in shaping the company’s reputation for quality and precision. His leadership ensured that each truss met rigorous structural standards, providing builders with dependable components essential to their projects.

Beginning in 2025, Mahlon Boehs has shifted his focus to education and knowledge-sharing through an informative blog dedicated to wood truss manufacturing. Drawing from his extensive experience in the field, he provides in-depth insights into truss design, material selection, and construction techniques. This blog serves as a valuable resource for builders, contractors, and homeowners seeking practical guidance on truss systems and structural integrity.