Gravel ponds feature gravel at their bottom. This gravel has multiple functions, such as natural filtration or aesthetic appeal.
No matter the size or type of the pond, you need quality gravel that looks great and serves its purpose.
High-quality gravel can make all the difference in water quality, durability, and overall pond health.
This guide will explain the use of gravel in ponds and how to find the best gravel for your property’s pond.
What Are Gravel Ponds?
Gravel ponds are basically ponds with gravel at their bottom. When constructing a pond, you have a few choices for the base of the pond, one of which is gravel.
Here’s what gravel can do in a pond:
Filtration and Water Quality
Gravel provides a surface area for beneficial pond bacteria to grow. This bacteria helps break down organic matter.
It can also improve the overall water clarity. This is especially important for fish ponds. It supports a natural biological filtration system.
Erosion Control
Placing gravel along the edges of a pond helps stabilize the shoreline and prevent soil erosion. That, in turn, keeps water levels more consistent. This is particularly beneficial in areas with heavy rainfall.
Aesthetic Appeal
Gravel at the bottom of the pond creates a striking contrast with the water. It adds a natural and attractive look to ponds.
Since gravel comes in various sizes, colors, and textures, you can be creative in landscaping and create different textures in the pond.
Support for Aquatic Life
Small aquatic creatures like snails and beneficial bacteria thrive in gravel beds. Fish can also use gravel to lay eggs.
It’s an essential component for maintaining a balanced aquatic ecosystem in the pond.
Drainage and Water Flow Management
Gravel helps with water circulation. It prevents stagnation by promoting proper drainage.
In other words, gravel makes it easy to keep pond water fresh and oxygenated.
The Importance of High-Quality Gravel for Ponds
Not all gravel is suitable for pond use. You must select high-quality gravel that is suitable for a pond and provides the many benefits we just discussed above.
Here’s what to look for when making a purchase:
-
Size and Uniformity: Quality gravel will have uniformity in size, which gives the pond a streamlined look.
-
Cleanliness: High-quality gravel should be pre-washed and free of dust, debris, and contaminants. Otherwise, the clarity of the water will get compromised.
-
Material Type: Natural river gravel or inert stone (such as granite or quartz) is the best for ponds. Limestone gravel may alter the water’s pH (which isn’t great for plants and fishes).
-
Durability: Well-sourced gravel resists breakdown over time.
Where to Buy High-Quality Gravel for Your Pond?
There are multiple places where you can find gravel for a pond. Here’s where you should look:
Local Landscaping and Garden Centers
Many garden centers and landscaping suppliers carry a variety of gravels suitable for pond use.
The advantage of buying locally is that you can see and feel the gravel before purchasing.
Also, staff members can often provide recommendations based on your pond’s specific needs.
Quarry and Aggregate Suppliers
For large-scale pond projects, buying directly from quarries or aggregate suppliers may save you money. That’s because they’re the ones supplying to the stores.
They often provide gravel in bulk, so you can buy it at a cheaper rate than what you get at landscape and garden centers.
Check the quality and confirm that the gravel is free from contaminants.
Online Gravel Retailers
You can also buy gravel online from pond and gardening retailers. The only downside is that you can’t physically inspect the gravel before it’s delivered.
When buying online:
-
Look for detailed product descriptions and reviews.
-
Ensure the supplier offers washed, pond-safe gravel.
-
Consider shipping costs and delivery time.
Home Improvement Stores
Major retailers such as Lowe’s, Home Depot, and Menards often carry bags of decorative and functional gravel.
Their selection may be limited compared to specialty stores. Still, they’re a convenient option for small gravel ponds.
Factors to Consider When Buying Gravel
Before making a purchase, keep these key factors in mind:
-
Gravel Size and Type: Match the gravel to your pond’s needs. Determine the main function of the gravel (filtration, aesthetics, or structural stability). For instance, pea gravel is great for filtration. Larger size gravel will be more visible, especially for a shallow pond.
-
Price vs. Quality: Avoid the cheapest options. They may contain contaminants. Instead, invest in durable, pre-washed gravel.
-
Supplier Reputation: Read reviews, ask for recommendations, and verify the supplier’s credibility before buying in bulk.
-
Environmental Impact: Choose eco-friendly gravel sourced responsibly to minimize environmental impact. Check the labels for origin.
Alternatives to Gravel
If you don’t want gravel or can’t find it, you can go with sand at the bottom of the pond.
Sand also offers a natural aesthetic for the pond. However, it can get disturbed pretty easily and make the water muddy.
Also, maintenance of a pond with a sand bottom can be difficult compared with gravel, which is easier to maintain.
Then, of course, there’s the bare pond liner option, which is cheap and simple. It’s super easy to maintain.
For large ponds, natural river rocks can also form the base. But they’re very expensive to source because of the size.
Find the Best Gravel for Your Pond!
Choosing high-quality gravel is essential for maintaining a functional and visually appealing pond.
Whether you buy from local garden centers, quarries, or online retailers, ensure that the gravel is clean, durable, and suitable for pond use.
Otherwise, your whole pond project may get compromised.
By following our guide, you can make an informed purchase that benefits both your pond’s ecosystem and its overall appearance.
Explore our blog for all things pond and find answers to all your questions about pond aeration, filters, and fountains.
FAQs
What type of gravel is best for ponds?
Natural river gravel, pea gravel, and inert stones like granite or quartz are the best choices for ponds.
Limestone is the only one to avoid. As it’s alkaline, it will increase the pH of the water.
How much gravel do I need for my pond?
The amount of gravel needed depends on the size and depth of your pond.
You typically need gravel for about two to three inches above the bottom, which is about 5 to 10 pounds of gravel per square foot.
Does gravel affect pond water quality?
Gravel can improve water quality by supporting beneficial bacteria and preventing erosion.
However, low-quality or unwashed gravel can introduce contaminants. In such a case, the water will get cloudy and have low visibility.
How do I clean gravel before adding it to my pond?
To clean gravel, rinse it thoroughly with water to remove dust and debris. You can use a garden hose or place the gravel in a large container and stir it while rinsing multiple times.
To avoid this hassle, buy washed gravel that’s ready to be used in the pond.
Can I use regular driveway gravel in my pond?
You shouldn’t use the gravel from your driveway for your pond. It may contain harmful chemicals, or the gravel may have sharp edges that could harm fish and plants.
Instead, opt for pond-safe gravel from a quarry or store.